FR3112403A3 - Eyewear - Google Patents

Abstract

The invention relates to an article of eyewear comprising: - a frame device configured to be worn by a user and - at least one lens holder mounted on the frame device in a predetermined mounting position, said lens holder comprising a lens associated ophthalmologist attached to said lens holder, the lens and lens holder being configured to be movable relative to the frame device while mounted on said frame device, wherein the lens holder includes at least two reference points each of which determines the position of a reference point of the ophthalmic lens. Figure to be published with abstract: Fig.1

Description

Eyewear

The invention relates to an article of eyewear. The invention further relates to a method of providing a suitable eyewear item to a user and a method of comparing a first lens and a second lens using such an eyewear item.

STATE OF THE ART

Ophthalmic lenses intended to be held in a frame generally require a prescription. The ophthalmic prescription may include a power prescription, positive or negative, as well as an astigmatism prescription. These prescriptions correspond to corrections allowing the wearer of the lenses to correct defects in their vision. A lens is mounted in the frame in accordance with the prescription and the position of the wearer's eyes relative to the frame.

The lenses suitable for presbyopic wearers are multifocal lenses or progressive lenses, in which the value of the power correction is different for far vision and near vision, due to accommodation difficulties in near vision. For example, progressive lenses are generally determined by optimization, based on a number of constraints imposed on the different characteristics of the lens.

Nevertheless, some wearers may have difficulty adapting to the use of progressive lenses despite having normal binocular vision and other normal clinical findings.

It is not usual for an eye care practitioner to be able to demonstrate different types of lenses. There are a few demonstrators offering to swap the lens of a demo headset to demonstrate different types of lenses or different types of optical designs for multifocal lenses. However, for this purpose, each trial lens must be correctly placed in relation to the wearer's eyes. Indeed, a good fitting of the lens to be tested is of great importance for the accuracy of the test, just as it is of great importance for the fitting of progressive lenses.

Ensuring the precise fitment of each trial lens can be complex and time-consuming, making the whole trial complex and less accurate, including imposing long delays between trying different pairs of lenses than the user wants to compare.

Thus, it is necessary for users to experiment and compare different lens advantages by changing lenses quickly and efficiently.

An object of the present invention is to provide a demonstration tool to support in-store lens sales, allowing easy and accurate lens positioning.

To this end, the invention proposes an article of eyewear comprising:
a mounting device configured to be worn by a user and
at least one lens holder mounted on the frame device in a predetermined mounting position, said lens holder including an associated ophthalmic lens secured to said lens holder, the lens and lens holder being configured to be movable relative to the device while they are mounted on said mounting device,
wherein the lens holder comprises at least two reference points each of which determines the position of a reference point of the ophthalmic lens.

Advantageously, such an article of eyewear makes it possible to quickly adjust the position of the ophthalmic lens holders, thus allowing effective exchange between the lenses to be tried on, in particular when the frame device is worn by the wearer.

Indeed, thanks to the reference points which determine the position of a reference point of the ophthalmic lens, the pupillary distance and/or the adjustments in mounting height can easily be adjusted for each ophthalmic lens tested, by positioning the markers of so as to align with the wearer's pupil when the lenses are worn by the wearer. Using the marker makes this positioning easy and intuitive.

Thus, such an article of eyewear allows the user to effectively experiment and compare different advantages of ophthalmic lenses.

The eyewear satisfies the requirements for speed and requires less adjustments and manipulations by the eye care practitioner on the wearer for the trial.

• le point de référence correspond au centre optique de la lentille ophtalmique ou au point de référence de vision de loin de la lentille ophtalmique ; et/ou
• l’article de lunetterie comprend en outre deux porte-verres dont chacun comprend une lentille ophtalmique associée, chaque porte-verre étant mobile par rapport à l'autre seulement dans une direction horizontale ; et/ou
• au moins une partie des points de repère sont situés sur les parties périphériques de la lentille ophtalmique ; et/ou
• chaque porte-verre comprend un contour de lentille dans lequel la lentille ophtalmique associée est fixée et montée sur ledit dispositif de monture par le biais dudit contour de lentille, et dans lequel au moins un des points de repère est situé sur le contour de lentille ; et/ou
• au moins une partie des points de repère sont configurés pour indiquer la position verticale du point de référence de la lentille ophtalmique ; et/ou
• au moins une partie des points de repère sont configurés pour indiquer la position horizontale du point de référence de la lentille ophtalmique ; et/ou
• la lentille ophtalmique est mobile par rapport au dispositif de monture suivant un axe correspondant à l’axe naso-temporal de l'utilisateur quand l’article de lunetterie est porté par l'utilisateur de telle sorte que la lentille ophtalmique soit positionnée devant un œil de l'utilisateur ; et/ou
• la position d'une plaquette nasale du dispositif de monture par rapport au dispositif de monture est réglable verticalement quand l'article de lunetterie est porté par l'utilisateur et/ou la position du porte-verre par rapport au dispositif de monture est réglable verticalement quand l'article de lunetterie est porté par l'utilisateur de telle sorte que la lentille ophtalmique associée soit positionnée devant un œil de l'utilisateur ; et/ou
• l'article de lunetterie comprend en outre une monture intermédiaire comprenant deux cercles assemblés par un pont, deux lentilles ophtalmiques étant mises en place à l'intérieur de deux porte-verres montés dans la monture intermédiaire ; et/ou
• la monture intermédiaire est fixée amovible au dispositif de monture ; et/ou
• la monture intermédiaire est fixée magnétiquement au dispositif de monture ; et/ou
• le porte-verre est fixé inamovible au dispositif de monture ; et/ou
• le porte-verre est fixé amovible au dispositif de monture ; et/ou
• le porte-verre est fixé magnétiquement au dispositif de monture ; et/ou
• l'article de lunetterie comprend un jeu d'au moins deux paires de lentilles ophtalmiques, chaque paire de lentilles ophtalmiques du jeu comprenant une lentille droite et une lentille gauche, les lentilles droites du jeu ayant le même contour droit et les centres optiques des lentilles droites étant positionnés au même endroit par rapport au contour droit et les lentilles gauches du jeu ayant le même contour gauche et les centres optiques des lentilles gauches étant positionnés au même endroit par rapport au contour gauche ; et/ou
• l'article de lunetterie comprend un jeu d'au moins deux paires de lentilles ophtalmiques, chaque paire de lentilles ophtalmiques étant différente d'une paire de lentilles ophtalmiques à une autre paire du jeu, ayant de préférence des puissances optiques différentes et/ou des conceptions optiques différentes d'une paire de lentilles ophtalmiques à une autre ; et/ou
• le jeu d'au moins deux paires de lentilles ophtalmiques comprend :
  • un premier sous-ensemble d'au moins une première paire de lentilles ophtalmiques unifocales ayant une première puissance optique et
  • un second sous-ensemble d'au moins une seconde paire de verres progressifs ou bifocaux avec au moins une zone ayant la première puissance ; et/ou
• le jeu d'au moins deux paires de lentilles ophtalmiques comprend :
  • un premier sous-ensemble comprenant au moins une première paire de lentilles ophtalmiques unifocales ayant une première puissance optique et une deuxième paire de lentilles ophtalmiques unifocales ayant une seconde puissance optique distincte de la première puissance optique et
  • un second sous-ensemble comprenant au moins une troisième paire de lentilles ophtalmiques, comprenant au moins une zone de vision de près ayant une puissance optique égale à la première puissance optique et une zone de vision de loin ayant une puissance optique égale à la seconde puissance optique, les troisièmes lentilles étant des verres progressifs ou des verres bifocaux ou des verres trifocaux.

According to other embodiments which can be considered alone or in combination:

• the reference point corresponds to the optical center of the ophthalmic lens or to the far vision reference point of the ophthalmic lens; and or
• the eyewear article further comprises two lens holders, each of which comprises an associated ophthalmic lens, each lens holder being movable relative to the other only in a horizontal direction; and or
• at least some of the landmarks are located on peripheral portions of the ophthalmic lens; and or
• each lens holder comprises a lens contour in which the associated ophthalmic lens is fixed and mounted on said mounting device through said lens contour, and in which at least one of the reference points is located on the lens contour; and or
• at least a part of the reference points are configured to indicate the vertical position of the reference point of the ophthalmic lens; and or
• at least a part of the reference points are configured to indicate the horizontal position of the reference point of the ophthalmic lens; and or
• the ophthalmic lens is movable relative to the frame device along an axis corresponding to the user's naso-temporal axis when the eyewear item is worn by the user such that the ophthalmic lens is positioned in front of an eye of the user; and or
• the position of a nose pad of the frame device relative to the frame device is vertically adjustable when the eyewear is worn by the user and/or the position of the lens holder relative to the frame device is vertically adjustable when the eyewear item is worn by the user such that the associated ophthalmic lens is positioned in front of an eye of the user; and or
• the eyewear article further comprises an intermediate frame comprising two rims joined together by a bridge, two ophthalmic lenses being placed inside two lens holders mounted in the intermediate frame; and or
• the intermediate frame is removably attached to the mounting device; and or
• the intermediate mount is magnetically attached to the mount device; and or
• the lens holder is irremovably fixed to the mounting device; and or
• the lens holder is removably attached to the mounting device; and or
• the lens holder is magnetically attached to the mounting device; and or
• the eyewear includes a set of at least two pairs of ophthalmic lenses, each pair of ophthalmic lenses in the set including a right lens and a left lens, the right lenses in the set having the same right contour and the optical centers of the lenses right being positioned at the same place with respect to the right contour and the left lenses of the game having the same left contour and the optical centers of the left lenses being positioned at the same place with respect to the left contour; and or
• the eyewear item comprises a set of at least two pairs of ophthalmic lenses, each pair of ophthalmic lenses being different from one pair of ophthalmic lenses to another pair of the set, preferably having different optical powers and/or different optical designs from one pair of ophthalmic lenses to another; and or
• the set of at least two pairs of ophthalmic lenses includes:
  • a first subset of at least a first pair of single vision ophthalmic lenses having a first optical power and
  • a second subset of at least a second pair of progressive or bifocal lenses with at least one zone having the first power; and or
• the set of at least two pairs of ophthalmic lenses includes:
  • a first subassembly comprising at least a first pair of single vision ophthalmic lenses having a first optical power and a second pair of single vision ophthalmic lenses having a second optical power distinct from the first optical power and
  • a second subassembly comprising at least a third pair of ophthalmic lenses, comprising at least one near vision zone having an optical power equal to the first optical power and a far vision zone having an optical power equal to the second power optical, the third lenses being progressive lenses or bifocal lenses or trifocal lenses.

The invention further relates to a set of eyewear items comprising at least two eyewear items according to the invention, each eyewear item comprising a pair of ophthalmic lenses, each pair of ophthalmic lenses being different from a pair of ophthalmic lenses to another pair of the set, preferably having different optical powers and/or different optical designs from one pair of ophthalmic lenses to another.

• un premier sous-ensemble d'au moins un premier article de lunetterie comprenant une première paire de lentilles ophtalmiques unifocales ayant une première puissance optique et
• un second sous-ensemble d'au moins un second article de lunetterie comprenant une seconde paire de verres progressifs ou bifocaux avec au moins une zone ayant la première puissance.

The set of eyewear according to the present invention may comprise:

• a first subset of at least a first eyewear item comprising a first pair of single vision ophthalmic lenses having a first optical power and
• a second subset of at least a second eyewear item comprising a second pair of progressive or bifocal lenses with at least one zone having the first power.

• un premier sous-ensemble comprenant au moins un premier article de lunetterie avec une première paire de lentilles ophtalmiques unifocales ayant une première puissance optique et un deuxième article de lunetterie avec une deuxième paire de lentilles ophtalmiques unifocales ayant une seconde puissance optique distincte de la première puissance optique et
• un second sous-ensemble comprenant au moins un troisième article de lunetterie avec une troisième paire de lentilles ophtalmiques, comprenant au moins une zone de vision de près ayant une puissance optique égale à la première puissance optique et une zone de vision de loin ayant une puissance optique égale à la seconde puissance optique, les troisièmes lentilles étant des verres progressifs ou des verres bifocaux ou des verres trifocaux.

The set of eyewear according to the present invention may comprise:

• a first subassembly comprising at least a first eyewear item with a first pair of single vision ophthalmic lenses having a first optical power and a second eyewear item with a second pair of single vision ophthalmic lenses having a second optical power distinct from the first power optical and
• a second subassembly comprising at least a third eyewear article with a third pair of ophthalmic lenses, comprising at least a near vision zone having an optical power equal to the first optical power and a far vision zone having a power optical equal to the second optical power, the third lenses being progressive lenses or bifocal lenses or trifocal lenses.

• un dispositif de monture configuré pour être porté par un utilisateur et
• au moins un porte-verre monté sur le dispositif de monture dans une position de montage prédéterminée et chaque porte-verre comprenant une lentille ophtalmique associée fixée audit porte-verre, chaque lentille et chaque porte-verre étant configurés pour être mobiles par rapport au dispositif de monture pendant qu’ils sont montés sur ledit dispositif de monture, chaque porte-verre comprend au moins deux points de repère dont chacun détermine la position d'un point de référence de chaque lentille ophtalmique,

le procédé comprenant au moins les opérations consistant à :

• pourvoir le dispositif de monture d’au moins deux porte-verres montés sur le dispositif de monture dans une position de montage prédéterminée ;
• déplacer la position des lentilles ophtalmiques associées aux porte-verres par rapport au dispositif de monture pour ajuster la position de la lentille à la position de la pupille de l'utilisateur, par exemple la distance pupillaire, en utilisant les points de repère pour déterminer la position du point de référence sur la lentille ophtalmique.

Another object of the invention relates to a method for supplying an eyewear article to a user using an eyewear article comprising:

• a mounting device configured to be worn by a user and
• at least one lens holder mounted on the frame device in a predetermined mounting position and each lens holder comprising an associated ophthalmic lens fixed to said lens holder, each lens and each lens holder being configured to be movable relative to the device frame while they are mounted on said frame device, each lens holder comprises at least two reference points, each of which determines the position of a reference point of each ophthalmic lens,

the method comprising at least the operations consisting in:

• providing the mounting device with at least two lens holders mounted on the mounting device in a predetermined mounting position;
• move the position of the ophthalmic lenses associated with the lens holders relative to the frame device to adjust the position of the lens to the position of the user's pupil, for example the pupillary distance, using the landmarks to determine the position of the reference point on the ophthalmic lens.

• le procédé comprend en outre l’opération consistant à déplacer verticalement la position du porte-verre par rapport au dispositif de monture ou verticalement la position d'une plaquette nasale du dispositif de monture par rapport au dispositif de monture pour aligner le centre pupillaire d'un œil de l'utilisateur avec les points de repère ; et/ou
• le procédé comprend en outre l’opération consistant à déplacer horizontalement la position du porte-verre par rapport au dispositif de monture pour aligner le centre pupillaire d'un œil de l'utilisateur avec les repères ; et/ou
• l'article de lunetterie comprend un jeu d'au moins deux porte-verres et au moins un dispositif de monture comprenant des fixations pour fixer les porte-verres, ou au moins deux montures, chacune étant fixée inamovible à un porte-verres, le procédé comprenant en outre les opérations consistant à :
  • fournir un autre porte-verre du jeu ;
  • échanger le porte-verre avec l'autre porte-verre ;
  • pour chaque lentille de l'autre porte-verre, déplacer la position de la lentille par rapport à l'autre porte-verre pour ajuster la position de la lentille de l'autre porte-verre à la distance pupillaire de l'utilisateur en utilisant les points de repère pour déterminer la position du point de référence sur chaque lentille ophtalmique ; et/ou
• quand l'utilisateur porte des lunettes, le procédé comprend en outre les opérations consistant à :
  • monter le dispositif de monture par-dessus les lunettes et
  • installer le porte-verre sur les lunettes et/ou le retirer de celles-ci.

According to other embodiments of the process which can be considered alone or in combination:

• the method further includes the step of vertically moving the position of the lens holder relative to the frame device or vertically moving the position of a nose pad of the frame device relative to the frame device to align the pupillary center of a user's eye with landmarks; and or
• the method further comprises the operation of horizontally moving the position of the lens holder relative to the mounting device to align the pupillary center of an eye of the user with the marks; and or
• the article of eyewear comprises a set of at least two lens holders and at least one frame device comprising attachments for fixing the lens holders, or at least two frames, each of which is irremovably fixed to a lens holder, the method further comprising the steps of:
  • provide another cup holder from the game;
  • swap the cup holder with the other cup holder;
  • for each lens of the other lens holder, moving the position of the lens relative to the other lens holder to adjust the position of the lens of the other lens holder to the pupillary distance of the user using the reference points to determine the position of the reference point on each ophthalmic lens; and or
• when the user wears glasses, the method further comprises the operations of:
  • mounting the frame device over the glasses and
  • install the lens holder on the glasses and/or remove it from them.

• fournir un premier et un second article de lunetterie, chaque article de lunetterie comprenant un dispositif de monture configuré pour être porté par un utilisateur, au moins un porte-verre monté sur le dispositif de monture dans une position de montage prédéterminée et chaque porte-verre comprenant une lentille ophtalmique associée fixée audit porte-verre, chaque lentille et chaque porte-verre étant configurés pour être mobiles par rapport au dispositif de monture pendant qu’ils sont montés sur ledit dispositif de monture, chaque porte-verre comprend au moins deux points de repère dont chacun détermine la position d'un point de référence de chaque lentille ophtalmique,
• pour chaque article de lunetterie, déplacer la position de la lentille ophtalmique par rapport au dispositif de monture pour ajuster la position de la lentille à la position de la pupille de l'utilisateur, par exemple la distance pupillaire, en utilisant les points de repère pour déterminer la position du point de référence sur chaque lentille ophtalmique,
• passer du premier article de lunetterie au second article de lunetterie au moins une fois après avoir ajusté la position de la lentille à la distance pupillaire de l'utilisateur.

Another object of the invention relates to a method for comparing two different lenses, the method comprising at least the operations consisting of:

• providing first and second eyewear, each eyewear including a frame device configured to be worn by a user, at least one lens holder mounted on the frame device in a predetermined mounting position, and each lens holder comprising an associated ophthalmic lens secured to said lens holder, each lens and each lens holder being configured to be movable relative to the frame device while mounted on said frame device, each lens holder includes at least two points reference point, each of which determines the position of a reference point of each ophthalmic lens,
• for each eyewear item, moving the position of the ophthalmic lens relative to the frame device to adjust the position of the lens to the user's pupil position, such as the pupillary distance, using the landmarks to determine the position of the reference point on each ophthalmic lens,
• switching from the first eyewear item to the second eyewear item at least once after adjusting the position of the lens to the wearer's pupillary distance.

According to one embodiment, the lenses have different optical designs and/or different optical powers and/or different tints.

BRIEF DESCRIPTION OF FIGURES

We will now describe embodiments of the invention, solely by way of example, with reference to the drawings below, among which:

is a schematic representation of an article of eyewear according to a first embodiment;

is a schematic representation of an article of eyewear according to a second embodiment;

is a schematic representation of a lens holder of the eyewear item shown in [Fig. 1];

is a schematic representation of a lens holder of the eyewear item shown in [Fig. 2];

and [Fig. 6] respectively illustrate incorrect adjustment and correct adjustment of the installation height of the eyewear article relative to the eyes of the wearer;

is an illustration by means of a flowchart of a method for supplying a spectacle lens adapted to a user using a spectacle article according to the invention; and

is a flowchart illustration of a method of comparing a first lens and a second lens according to one embodiment of the invention.

The elements in the figures are illustrated for the sake of simplicity and clarity and have not necessarily been drawn to scale. For example, the dimensions of some of the elements in the figure may have been exaggerated relative to other elements to help enhance understanding of embodiments of the present invention.

DETAILED DESCRIPTION OF EMBODIMENTS

The invention relates to an article of eyewear comprising a frame device and at least one lens holder.

Figure 1 shows an example of an eyewear item 10 comprising a frame device 12 and at least one lens holder 14.

In Figure 1, eyewear 10 includes two lens holders mounted to the frame device in predetermined mounting positions. According to the embodiment of Figure 1, the lens holders are irremovably mounted on the mounting device 10.

The mount device 12 is configured to be worn by a user. To this end, the mounting device 12 comprises a face part 16, a first and a second leg 18. The first and second legs 18 are configured to be fixed to the face part 16, for example by means of hinges and screws.

The frame device 12 equipped with lens holders can be used as a frame for eyeglass lenses by the user or can be put in place by the wearer over eyeglasses already worn by the user. To this end, the frame device is configured to be mounted over any glasses of the user.

The frame device 12 further includes an eyeglass nose pad 32 arranged to rest on the user's nose when the eyewear 10 is worn by the user.

Preferably, the eyewear article according to the invention comprises two ophthalmic lenses, for example the eyewear article comprises two lens holders each associated with an ophthalmic lens 22, 24 held by said lens holder.

Each ophthalmic lens and associated lens holder are configured to be movable relative to the frame device while mounted on said frame device.

The lens holder comprises at least two reference points 15, each of which determines the position of a reference point of the ophthalmic lens.

The ophthalmic lens reference point may correspond to the optical center of the ophthalmic lens or to the far vision reference point of the ophthalmic lens or to the near vision reference point of the ophthalmic lens.

Landmarks 15 are used by the eye care practitioner to align the reference point with the user's pupil when the user is staring in a given direction or at a given distance.

For example, while the user is staring into the distance, such as at a visual target at a distance greater than 4 meters, the eye care practitioner can align landmarks determining the position of the far vision reference point of the ophthalmic lens with the center of the user's pupil.

Advantageously, the reference points make it much easier for the eye care practitioner to precisely position the ophthalmic lenses in front of the user's eyes.

According to one embodiment of the invention, at least some, for example all, of the reference points can be located directly on the ophthalmic lens itself, preferably on the peripheral parts of the ophthalmic lenses so as to reduce the visual discomfort for the user.

As illustrated in Figure 1, the eyewear article according to the invention may comprise two lens holders. Each lens holder may comprise a lens contour 17 in which the associated ophthalmic lens is fixed and mounted on said mounting device through said lens contour. Preferably, at least one of the reference points is located on the lens contour 17, for example all the reference points are located on the lens contour.

The first lens 22 and the second lens 24 are each configured to be movable independently of each other relative to the mounting device while they are mounted on said mounting device 12. Advantageously, each lens 22, 24 of the pair is movable relative to the frame device along an axis corresponding to the user's naso-temporal axis when the eyewear item is worn by the user such that the associated pair of ophthalmic lenses is positioned in front the eyes of the user.

In other words, each lens holder comprises means for adjusting the position of each lens 22, 24 along an axis corresponding to the naso-temporal axis of the user when the eyewear item is worn, making it possible to adjust the distance pupil independently for each eye. For example, a first slider 40 and a second slider 42 are arranged in the frame 12 and each lens holder 14 respectively comprises a first complementary support 44 and a second complementary support 46, as illustrated in FIG. 3. The first complementary support 44 is arranged and configured to be inserted into the first slider 40 such that, when an eye care practitioner slides the first complementary support 44 into the first slider 40, the first lens 22 moves relative to the frame device according to a axis corresponding to the naso-temporal axis of the user, allowing adjustment of the pupillary distance for the right eye.

Similarly, the second complementary support 46 is arranged and configured to be inserted into the second slider 42 such that, when the eye care practitioner slides the second complementary support 46 into the second slider 42, the second lens 22 moves relative to the mounting device along an axis corresponding to the naso-temporal axis of the user, allowing adjustment of the pupillary distance for the left eye independently of the adjustment of the pupillary distance for the right eye.

According to one embodiment of the invention, at least some of the reference points are configured to indicate the horizontal position of the reference point of the ophthalmic lens.

Advantageously, the adjustment of the positions of the first and second ophthalmic lenses along the naso-temporal axis is facilitated by the reference points indicating the horizontal position of the reference point.

The position of the ophthalmic lenses can further be adjusted vertically with respect to the user when the eyewear article is worn by the user such that the associated pair of ophthalmic lenses is well positioned in front of the user's eyes while the lens holder 14 is attached to the mounting device 12.

For example, the frame device comprises means for adjusting the position of the nose pad 32 of the frame device 12 relative to the frame device 12 along a vertical axis when the frame device is worn by the user, allowing the installation height adjustment.

According to one embodiment of the invention, at least some, for example all, of the reference points are configured to indicate the vertical position of the reference point of the ophthalmic lens. Advantageously, the adjustment of the installation height is facilitated by the reference points indicating the vertical position of the reference point.

For example, the ophthalmic lenses 22, 24 may include reference points and the mounting device 14 includes a system for vertically moving the position of the ophthalmic lenses relative to the user, allowing the alignment of the pupillary centers of the eyes of the user. 5 and 6. Figure 5 shows that the installation height of the eyewear is misaligned with the user's eyes while that in Figure 6 the installation height setting is correct.

For example, the system for vertically moving the position of nose pad 32 of frame device 12 relative to frame device 12 when the eyewear item is worn may include a rack and pinion configured to cooperate with the rack.

If we refer to Figures 2 and 4, the eyewear item comprises an intermediate frame 20 comprising two circles 26, 28 assembled by a bridge 30, two ophthalmic lenses being placed inside the two lens holders 17 mounted in the intermediate frame 20.

Unlike the lens holders in the embodiment of Figures 1 and 3, the intermediate frame 20 according to the embodiment of Figures 2 and 4 is removably attached to the frame device.

The positioning features and landmarks described in relation to the embodiment of Figures 1 and 3 apply to the embodiment of Figures 2 and 4.

Referring to Figure 2, the associated pair of optical lenses includes a first optical lens 22 and a second optical lens 24. The first and second optical lenses 22, 24 are preferably ophthalmic lenses. The first optical lens 22 and a second optical lens 24 are coupled by an intermediate frame 20, which guarantees effective exchange between two pairs of ophthalmic lenses, in particular when the frame device is worn by the wearer.

In Figure 2, intermediate mount 20 is not yet attached to mount device 12.

As with the first embodiment, the mount device 12 is configured to be worn by a user. To this end, the mounting device 12 comprises a face part 16, a first and a second leg 18. The first and second legs 18 are configured to be fixed to the face part 16, for example by means of hinges and screws. According to this embodiment, the frame device is defined as part of a frame that does not carry any lens until the lens holder is attached to it.

Intermediate mount 20 is configured to be removably attached to mount device 12 in a predetermined mounting position.

For example, the intermediate frame can advantageously be fixed magnetically to the mounting device, which allows rapid, reproducible and reliable positioning of the intermediate frame with respect to the mounting device 12. Two intermediate frames can thus be easily exchanged with one reproducible replacement on the mount device.

The frame device equipped with the intermediate frame can be used as a frame for spectacle lenses by the user or can be put in place by the wearer over glasses already worn by the user. To this end, the frame device is configured to be mounted over any glasses of the user.

The frame device 12 further includes an eyeglass nose pad 32 arranged to rest on the user's nose when the eyewear 10 is worn by the user. Referring to Figure 2, the intermediate frame is associated with a pair of optical lenses, each attached to said intermediate frame 20 through a lens holder 14. The associated pair of optical lenses comprises a first optical lens 22 and a second optical lens 24. The first and second optical lenses 22, 24 are preferably ophthalmic lenses. The first optical lens 22 and a second optical lens 24 are coupled to an intermediate frame by means of lens holders so as to guarantee an effective exchange between two lens holders, in particular when the frame device is worn by the wearer.

Advantageously, the intermediate frame 20 comprises a first circle 26 and a second circle 28 connected by a bridge 30 making it possible to quickly manipulate the intermediate frame 20 without putting your fingers on the lenses when exchanging two intermediate frames. Effectively, this prevents the lens from being moved in relation to the lens holder during handling and from being soiled during rapid exchange, which would be detrimental to the quality of the comparison. Each of the first and second rims 26, 28 includes frame rims arranged to receive the first and second lenses 22, 24 respectively such that the lenses 22, 24 are fitted within a rim 26, 28 corresponding.

Each lens holder of the intermediate frame includes reference points, each of which determines the position of a reference point of the lens, which allows easy and precise positioning of the lenses in front of the user's eyes.

The first lens 22 and the second lens 24 are arranged to be placed respectively in front of the right eye and the left eye (not shown in Figures 1 to 4) of the user when the intermediate frame 20 is attached to the frame device 12 and that the eyewear 10 is worn by the user.

The first lens 22 and the second lens 24 are each configured to be movable independently of each other relative to the intermediate frame 20. Advantageously, each lens 22, 24 of the pair is movable relative to the intermediate frame according to an axis corresponding to the user's naso-temporal axis when the eyewear item is worn by the user such that the associated pair of ophthalmic lenses is positioned in front of the user's eyes.

In other words, each lens holder comprises means for adjusting the position of each lens 22, 24 along an axis corresponding to the naso-temporal axis of the user when the eyewear item is worn, making it possible to adjust the distance pupil independently for each eye. For example, a first slider 40 and a second slider 42 are arranged in the frame 20 of the lens holder and each first lens 22 and second lens 24 respectively comprises a first complementary support 44 and a second complementary support 46, as illustrated in FIG. 4. The first complementary support 44 is arranged and configured to be inserted into the first slider 40 such that, when an eye care practitioner slides the first complementary support 44 into the first slider 40, the first lens 22 moves by relative to the intermediate frame along an axis corresponding to the naso-temporal axis of the user, allowing adjustment of the pupillary distance for the right eye.

Similarly, the second complementary support 46 is arranged and configured to be inserted into the second slider 42 such that, when the eye care practitioner slides the second complementary support 46 into the second slider 42, the second lens 22 moves relative to the intermediate frame along an axis corresponding to the naso-temporal axis of the user, allowing adjustment of the pupillary distance for the left eye independently of the adjustment of the pupillary distance for the right eye.

Advantageously, a position of the frame device 12 can also be adjusted vertically relative to the user when the eyewear article is worn by the user so that the associated pair of ophthalmic lenses is well positioned in front of the eyes. of the user while the intermediate frame 20 is attached to the mounting device 12.

In other words, the frame device comprises means for adjusting the position of the nose pad 32 of the frame device 12 relative to the frame device 12 along a vertical axis when the frame device is worn by the user, allowing the installation height adjustment. Thanks to the invention, the installation height is set once for an intermediate mount and is then kept for other intermediate mounts.

For example, the lenses 22, 24 include landmarks and the frame device 14 includes a system for vertically moving the position of the frame device 12 relative to the user, allowing alignment of the pupillary centers of the eyes of the user. user with the lens landmarks 22, 24 as shown in Figures 5 and 6. in Figure 6, the installation height adjustment is correct.

According to a preferred embodiment, eyewear 10 includes a set of a plurality of pairs of ophthalmic lenses. Each lens of the plurality of pairs of ophthalmic lenses is associated with at least one reference point so as to facilitate the precise positioning of each ophthalmic lens in front of the user's eye.

In the case of the embodiment of Figures 2 and 4, each pair of ophthalmic lenses is mounted in a different intermediate frame. Each intermediate mount is configured to be removably attached to the mount device in the same predetermined manner and as described above.

Each lens of the plurality of pairs of ophthalmic lenses is also movable relative to the frame material as described above.

Alternatively, the invention further relates to a set of eyewear comprising at least two eyewear according to the invention. Each eyewear item includes a pair of ophthalmic lenses, each pair of ophthalmic lenses being different from one pair of ophthalmic lenses to another pair in the set, preferably having different optical powers and/or different optical designs from a pair of ophthalmic lenses to another.

Each lens in the eyewear set is associated with at least one landmark to facilitate precise positioning of each ophthalmic lens in front of the wearer's eye.

Each pair of ophthalmic lenses of the set comprises a right lens 22 and a left lens 24 intended to be placed respectively in front of the right eye and the left eye of the user when he wears the eyewear article.

The straight lenses in the game have the same straight outline, and the optical centers of the straight lenses are positioned at the same place relative to the straight outline. Similarly, the left lenses in the game have the same left contour, and the optical centers of the left lenses are positioned in the same place relative to the left contour.

Each pair of ophthalmic lenses is different from another pair in the game, which allows the comparison of the advantages of the lens in the game. In other words, at least one lens among the right lens and the left lens is different from another game lens.

According to a preferred embodiment, the pairs of ophthalmic lenses in the game have different optical powers and/or different optical designs from each other.

Within the meaning of the invention, an “optical design” designates the set of parameters making it possible to define the surfaces of an ophthalmic lens. For example, it can include the equation of the surface, the position and the orientation of a surface of a face of an ophthalmic lens, these equation, position and orientation being defined in a system of coordinates.

According to one embodiment, the set of pairs of ophthalmic lenses comprises a first subset of at least a first pair of ophthalmic lenses and a second subset of at least a second pair of ophthalmic lenses.

Each first pair of ophthalmic lenses are single vision lenses and each second pair of ophthalmic lenses are progressive lenses.

Alternatively, the set of eyewear according to the present invention comprises:

a first subset of at least a first eyewear item comprising a first pair of single vision ophthalmic lenses having a first optical power and

a second subset of at least a second eyewear item comprising a second pair of progressive or bifocal lenses with at least one zone having the first power.

Preferably, at least one unifocal lens of the first subset has a first optical power and at least one progressive lens of the second subset has at least one zone having the first power or an addition of the same diopter value as the first optical power .

Advantageously, such an article of eyewear having such a set of pairs of ophthalmic lenses allows the user to experiment and effectively compare the advantages of a progressive lens with those of a single vision lens by exchanging the corresponding pair of ophthalmic lenses while easily and accurately adjusting the user's installation parameters.

Interchange is even easier using the embodiment of Figures 2 and 4 because the lens holders can be interchanged while the user is wearing the frame device and the installation settings are retained.

According to one embodiment, each first pair of ophthalmic lenses of the first subset comprises an associated pair of single vision lenses and each second pair of ophthalmic lenses of the second subset comprises an associated pair of bifocal or trifocal lenses.

Preferably, at least one unifocal lens from the first subset has a first optical power and at least one bifocal or trifocal lens from the second subset has at least one zone having the first power.

Advantageously, such an article of eyewear having such a set of pairs of ophthalmic lenses according to this embodiment allows the user to experiment and effectively compare the advantages of a bifocal or trifocal lens with respect to those of the unifocal glass in exchanging the corresponding pair of ophthalmic lenses while easily and precisely adjusting the user's installation parameters.

• un premier sous-ensemble comprenant au moins un premier article de lunetterie avec une première paire de lentilles ophtalmiques unifocales ayant une première puissance optique et un deuxième article de lunetterie avec une deuxième paire de lentilles ophtalmiques unifocales ayant une seconde puissance optique distincte de la première puissance optique et
• un second sous-ensemble comprenant au moins un troisième article de lunetterie avec une troisième paire de lentilles ophtalmiques, comprenant au moins une zone de vision de près ayant une puissance optique égale à la première puissance optique et une zone de vision de loin ayant une puissance optique égale à la seconde puissance optique, les troisièmes lentilles étant des verres progressifs ou des verres bifocaux ou des verres trifocaux.

Interchange is even easier using the embodiment of Figures 2 and 4 because the lens holders can be interchanged while the user is wearing the frame device and the installation settings are maintained. According to one embodiment, the set of eyewear items may include:

• a first subassembly comprising at least a first eyewear item with a first pair of single vision ophthalmic lenses having a first optical power and a second eyewear item with a second pair of single vision ophthalmic lenses having a second optical power distinct from the first power optical and
• a second subassembly comprising at least a third eyewear article with a third pair of ophthalmic lenses, comprising at least a near vision zone having an optical power equal to the first optical power and a far vision zone having a power optical equal to the second optical power, the third lenses being progressive lenses or bifocal lenses or trifocal lenses.

According to another embodiment, the pair of ophthalmic lenses is a pair of single vision glasses having a first optical power P1 and the second pair of ophthalmic lenses is a pair of single vision glasses having a second optical power P2 distinct from the first optical power P1 .

Preferably, at least a third pair of ophthalmic lenses comprises a pair of third lenses comprising at least one near vision zone having an optical power equal to the first optical power P1 and a far vision zone having an optical power equal to the second optical power P2.

Of course, the third lenses can be progressive lenses, bifocal lenses or trifocal lenses.

Advantageously, such an embodiment allows the user to experiment and effectively compare the advantages of different lenses: progressive lenses, bifocal lenses, trifocal lenses and single vision lenses, by exchanging the corresponding pair of ophthalmic lenses while adjusting easily and precisely the user's installation parameters.

Interchange is even easier using the embodiment of Figures 2 and 4 because the lens holders can be interchanged while the user is wearing the frame device and the installation settings are retained.

All of these embodiments are compatible and the lenses may have different optical designs and/or different optical powers and/or different tints and/or different functional coatings and allow a user to easily compare their advantages. A set may include different subsets for single vision lenses, progressive lenses, bifocal lenses and/or trifocal lenses.

Another object of the invention relates to a method for supplying a spectacle lens adapted to a user using a spectacle article according to the invention and as described above.

• pourvoir (S16) le dispositif de monture d’au moins un porte-verre monté sur le dispositif de monture dans une position de montage prédéterminée ;
• pour chaque première et seconde lentille du porte-verre quand l’article de lunetterie est porté par l’utilisateur, déplacer (S18) la position de la lentille ophtalmique associée au porte-verre par rapport au dispositif de monture pour ajuster la position de la lentille à la position de la pupille de l'utilisateur, par exemple la distance pupillaire, en utilisant les points de repère pour déterminer la position du point de référence sur la lentille ophtalmique.

Referring to Figure 7, the method includes at least the operations of:

• providing (S16) the mounting device with at least one lens holder mounted on the mounting device in a predetermined mounting position;
• for each first and second lens of the lens holder when the eyewear item is worn by the user, moving (S18) the position of the ophthalmic lens associated with the lens holder relative to the frame device to adjust the position of the lens to the position of the user's pupil, for example the pupillary distance, using the landmarks to determine the position of the reference point on the ophthalmic lens.

• fournir (S10) le dispositif de monture ;
• fournir (S12) un support de lentille ;
• fixer (S14) le porte-verre au dispositif de monture.

When the eyewear article conforms to the embodiment described in Figures 2 and 4, the method may further comprise, before the supply (S16) of the frame, at least the operations consisting of:

• providing (S10) the mounting device;
• providing (S12) a lens holder;
• attaching (S14) the lens holder to the mounting device.

Advantageously, the method further comprises the operation of moving (S20) vertically the position of the lens holder relative to the frame device or vertically the position of a nose pad of the frame device relative to the frame device to align the pupillary center of an eye of the user with the landmarks.

• fournir un autre porte-verre du jeu ;
• échanger le porte-verre avec l'autre porte-verre ;
• pour chaque lentille de l'autre porte-verre, déplacer la position de la lentille par rapport à l'autre porte-verre pour ajuster la position de la lentille de l'autre porte-verre à la distance pupillaire de l'utilisateur.

According to a preferred embodiment, the eyewear item comprises a set of lens holders as described above. Each lens holder in the game includes a pair of optical lenses. Thus, the method may further comprise the operations consisting of:

• provide another cup holder from the game;
• swap the cup holder with the other cup holder;
• for each lens of the other lens holder, moving the position of the lens relative to the other lens holder to adjust the position of the lens of the other lens holder to the pupillary distance of the user.

Thanks to the invention, the installation height is set once for a glass holder and is then kept for other glass holders.

In addition, the eyewear article makes it possible to change both lenses at the same time and the change between various lenses is very fast and therefore efficient for a successful experience and comparison between the presented lenses, in particular when the frame device is worn. by the carrier.

According to another embodiment compatible with the previous ones, when the user is already wearing glasses, the method further comprises the operations consisting in mounting the frame device over the glasses and in changing the lens holder on the glasses in detaching the lens holder from the frame device, which allows an effective comparison between the user's glasses alone and the user's glasses with the presented glasses. For example, if the user wears single vision lenses with power and cylinder correction, the lenses presented may have an additional function which may be optical (addition, for example) or of a complementary nature (a coating, a tint, a polarization...).

• fournir (S30) un premier et un second article de lunetterie, chaque article de lunetterie comprenant un dispositif de monture configuré pour être porté par un utilisateur, deux porte-verres montés sur le dispositif de monture dans une position de montage prédéterminée et chaque porte-verre comprenant une lentille ophtalmique associée fixée audit porte-verre, chaque lentille ophtalmique et porte-verre étant configurés pour être mobiles par rapport au dispositif de monture pendant qu'ils sont montés sur ledit dispositif de monture, dans lequel chaque porte-verre comprend au moins deux points de repère dont chacun détermine la position d'un point de référence de chaque lentille ophtalmique,
• pour chaque article de lunetterie, déplacer (S34) la position des lentilles ophtalmiques par rapport au dispositif de monture pour ajuster la position de chaque lentille à la position de la pupille de l'utilisateur, par exemple la distance pupillaire, en utilisant les points de repère pour déterminer la position du point de référence sur chaque lentille ophtalmique,
• passer (S36) du premier article de lunetterie au second article de lunetterie au moins une fois après avoir ajusté la position de la lentille à la distance pupillaire de l'utilisateur.

Another object of the invention relates to a method for comparing a first lens and a second lens, for example capable of being placed in front of the same eye. The method includes at least the operations consisting of:

• providing (S30) first and second eyewear, each eyewear comprising a frame device configured to be worn by a user, two lens holders mounted on the frame device in a predetermined mounting position, and each lens holder lens comprising an associated ophthalmic lens secured to said lens holder, each ophthalmic lens and lens holder being configured to be movable relative to the frame device while mounted on said frame device, wherein each lens holder comprises at least two reference points, each of which determines the position of a reference point of each ophthalmic lens,
• for each eyewear item, moving (S34) the position of the ophthalmic lenses relative to the frame device to adjust the position of each lens to the position of the user's pupil, for example the pupillary distance, using the points of marker to determine the position of the reference point on each ophthalmic lens,
• switching (S36) from the first eyewear article to the second eyewear article at least once after adjusting the position of the lens to the pupillary distance of the user.

• fournir (S30) un dispositif de monture ;
• fournir (S32) un premier porte-verre et un second porte-verre. Le premier porte-verre comprend au moins la première lentille agencée pour être placée en face de l'œil correspondant quand l'article de lunetterie est porté. Le second porte-verre comprend au moins la seconde lentille agencée pour être placée en face du même œil quand l'article de lunetterie est porté.
• pour chaque porte-verre du premier porte-verre et du second porte-verre :
  • fixer le porte-verre au dispositif de monture ;
  • pour chaque lentille du porte-verre, déplacer (S34) la position de la lentille par rapport au porte-verre pour ajuster la position de la lentille à la distance pupillaire de l’œil de l'utilisateur au moyen des points de repère,
• passer (S36) du premier porte-verre au second porte-verre au moins une fois après avoir ajusté la position de la lentille à la distance pupillaire de l'utilisateur, en particulier quand le dispositif de monture est porté par le porteur.

When using an article of eyewear according to the embodiment of Figures 2 and 4, the method can be adapted to include the operations consisting of:

• providing (S30) a mounting device;
• providing (S32) a first cup holder and a second cup holder. The first lens holder comprises at least the first lens arranged to be placed in front of the corresponding eye when the eyewear article is worn. The second lens holder comprises at least the second lens arranged to be placed in front of the same eye when the eyewear article is worn.
• for each glass holder of the first glass holder and of the second glass holder:
  • attaching the lens holder to the mounting device;
  • for each lens of the lens holder, moving (S34) the position of the lens relative to the lens holder to adjust the position of the lens to the pupillary distance of the user's eye by means of the landmarks,
• switching (S36) from the first lens holder to the second lens holder at least once after adjusting the position of the lens to the user's pupillary distance, particularly when the frame device is worn by the wearer.

Preferably, the method further comprises the operation of vertically moving the position of the mounting device relative to the user to align the pupillary center of an eye of the user with the reference points, which makes it possible to adjust the installation height of the eyewear article on the user before changing from the first lens holder to the second lens holder.

The method and the eyewear promote the detection of differences between the first lens and the second lens. In particular, the lenses can have different optical designs and/or different optical powers and/or different tints.

The invention as described above has the advantage of providing a demonstration tool to support in-store lens sales, allowing easy and precise adjustment of the position of ophthalmic lenses in front of the user's eyes.

Advantageously, such an article of eyewear allows the user to experiment and effectively compare the advantages of different lenses: progressive lenses, bifocal lenses, trifocal lenses and single vision lenses, by quickly exchanging the corresponding lens holders while maintaining the parameters installation of the user, in particular with the embodiment of Figures 2 and 4 when the mounting device is worn by the user.

The lenses may have different optical designs and/or different optical powers and/or different tints and/or different functional coatings and allow a user to easily compare their advantages.

The invention has been described above using embodiments without limiting the general inventive concept. In particular, the eyewear article according to the invention can be used to demonstrate myopia correction lenses to a user.

Furthermore, to increase the visibility of the landmarks, said landmarks can be painted.

Many other modifications and variations will occur to those skilled in the art when referring to the aforesaid illustrative embodiments, which are given by way of example only and are not intended to limit the scope of the invention. this being determined solely by the appended claims.

In the claims, the word "comprising" does not exclude other elements or steps and the indefinite article "a" or "a" does not exclude a plurality. The mere fact that different features are cited in different dependent claims does not mean that a combination of these features cannot be used to advantage. No reference sign in the claims should be interpreted as limiting the scope of the invention.

Claims (21)

Eyewear including:

• a mounting device configured to be worn by a user and
• at least one lens holder mounted on the frame device in a predetermined mounting position, said lens holder including an associated ophthalmic lens secured to said lens holder, the lens and lens holder being configured to be movable relative to the device while they are mounted on said mounting device,

wherein the lens holder comprises at least two reference points each of which determines the position of a reference point of the ophthalmic lens. An article of eyewear according to claim 1, further comprising two lens holders each of which includes an associated ophthalmic lens, each lens holder being movable relative to the other only in a horizontal direction. An article of eyewear according to claim 1 or 2, wherein the reference point corresponds to the optical center of the ophthalmic lens or to the far vision reference point of the ophthalmic lens. An article of eyewear according to any one of the preceding claims, in which at least a part of the reference points are located on the peripheral parts of the ophthalmic lens. An article of eyewear according to any one of the preceding claims, wherein each lens holder comprises a lens frame in which the associated ophthalmic lens is fixed and mounted on said frame device via said lens frame and
wherein at least one of the landmarks is located on the lens contour. An article of eyewear according to any preceding claim, wherein at least a portion of the reference points are configured to indicate the vertical position of the reference point of the ophthalmic lens. An article of eyewear according to any preceding claim, wherein at least a portion of the reference points are configured to indicate the horizontal position of the reference point of the ophthalmic lens. Eyewear according to any one of the preceding claims, in which the ophthalmic lens is movable relative to the frame device along an axis corresponding to the naso-temporal axis of the user when the eyewear is worn by the user so that the ophthalmic lens is positioned in front of an eye of the user. An eyewear according to any preceding claim, wherein the position of a nose pad of the frame device relative to the frame device is vertically adjustable when the eyewear is worn by the wearer and/or the position of the lens holder relative to the frame device is vertically adjustable when the eyewear item is worn by the user such that the associated ophthalmic lens is positioned in front of an eye of the user. Eyewear according to any one of the preceding claims, further comprising an intermediate frame comprising two rims joined together by a bridge, two ophthalmic lenses being placed inside two lens holders mounted in the intermediate frame. An article of eyewear according to any one of the preceding claims, in which the intermediate frame is detachably attached to the frame device. An article of eyewear according to any preceding claim, wherein the intermediate frame is magnetically attached to the frame device. An article of eyewear according to any preceding claim, wherein the article of eyewear comprises a set of at least two pairs of ophthalmic lenses, each pair of ophthalmic lenses being different from one pair of ophthalmic lenses to another pair of the game, preferably having different optical powers and/or different optical designs from one pair of ophthalmic lenses to another. Eyewear article according to the preceding claim, in which the set of at least two pairs of ophthalmic lenses comprises:

• a first subset of at least a first pair of single vision ophthalmic lenses having a first optical power and
• a second subset of at least a second pair of progressive or bifocal lenses with at least one zone having the first power.

A set of eyewear comprising at least two eyewear according to any preceding claim, each eyewear comprising a pair of ophthalmic lenses, each pair of ophthalmic lenses being different from one pair of ophthalmic lenses to another pair of the set, preferably having different optical powers and/or different optical designs from one pair of ophthalmic lenses to another. Set of eyewear according to the preceding claim, in which the set comprises:

• a first subset of at least a first eyewear item comprising a first pair of single vision ophthalmic lenses having a first optical power and
• a second subset of at least a second eyewear item comprising a second pair of progressive or bifocal lenses with at least one zone having the first power.

A set of eyewear according to claim 16, wherein the set comprises:

• a first subassembly comprising at least a first eyewear item with a first pair of single vision ophthalmic lenses having a first optical power and a second eyewear item with a second pair of single vision ophthalmic lenses having a second optical power distinct from the first power optical and
• a second subassembly comprising at least a third eyewear article with a third pair of ophthalmic lenses, comprising at least a near vision zone having an optical power equal to the first optical power and a far vision zone having a power optical equal to the second optical power, the third lenses being progressive lenses or bifocal lenses or trifocal lenses.

A method of providing an eyewear item to a user using an eyewear item comprising:

• a mounting device configured to be worn by a user and
• at least one lens holder mounted on the frame device in a predetermined mounting position, each lens holder including an associated ophthalmic lens secured to said lens holder, each ophthalmic lens and lens holder being configured to be movable relative to the device frame while they are mounted on said frame device, each lens holder comprises at least two reference points, each of which determines the position of a reference point of each ophthalmic lens,

the method comprising at least the operations consisting in:

• providing the mounting device with at least one lens holder mounted on the mounting device in a predetermined mounting position;
• move the position of the ophthalmic lens associated with the lens holder relative to the frame device to adjust the position of the lens to the position of the user's pupil, for example the pupillary distance, using the landmarks to determine the position of the reference point on the ophthalmic lens.

A method of providing an article of eyewear to a user according to claim 18, wherein the method further comprises the steps of:

• vertically move the position of the lens holder relative to the frame device or vertically move the position of a nose pad of the frame device relative to the frame device to align the pupillary center of an eye of the user with the points of mark.

Method for comparing two different lenses, the method comprising at least the operations consisting in:

• providing first and second eyewear, each eyewear comprising a frame device configured to be worn by a user, two lens holders mounted on the frame device in a predetermined mounting position, and each lens holder comprising a associated ophthalmic lens secured to said lens holder, each ophthalmic lens and lens holder being configured to be movable relative to the frame device while mounted on said frame device, wherein each lens holder includes at least two points reference point, each of which determines the position of a reference point of each ophthalmic lens,
• for each eyewear item, moving the position of each ophthalmic lens relative to the frame device to adjust the position of the lens to the position of the user's pupil, for example the pupillary distance, using the fiducial points to determine the position of the reference point on each ophthalmic lens,
• switching from the first eyewear item to the second eyewear item at least once after adjusting the position of the lens to the wearer's pupillary distance.

A method of comparing two different lenses according to claim 20, wherein the lenses have different optical designs and/or different optical powers and/or different tints.