CN106681020A - Near-distance used myopia-preventing glasses and matching method thereof - Google Patents
Near-distance used myopia-preventing glasses and matching method thereof Download PDFInfo
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- CN106681020A CN106681020A CN201710205030.XA CN201710205030A CN106681020A CN 106681020 A CN106681020 A CN 106681020A CN 201710205030 A CN201710205030 A CN 201710205030A CN 106681020 A CN106681020 A CN 106681020A
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- myopia
- glasses
- picture frame
- closely
- nose support
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- 208000001491 myopia Diseases 0.000 title claims abstract description 89
- 239000011521 glass Substances 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000004379 myopia Effects 0.000 claims abstract description 11
- 230000004438 eyesight Effects 0.000 claims description 42
- 238000012937 correction Methods 0.000 claims description 25
- 210000001747 pupil Anatomy 0.000 claims description 16
- 230000007547 defect Effects 0.000 claims description 13
- 210000000162 simple eye Anatomy 0.000 claims description 9
- 210000000078 claw Anatomy 0.000 claims description 7
- 239000013536 elastomeric material Substances 0.000 claims description 5
- 230000002265 prevention Effects 0.000 claims description 5
- 238000012360 testing method Methods 0.000 claims description 3
- 230000008859 change Effects 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 description 6
- 210000001525 retina Anatomy 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000001886 ciliary effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 208000003464 asthenopia Diseases 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004118 muscle contraction Effects 0.000 description 1
- 230000004423 myopia development Effects 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C5/00—Constructions of non-optical parts
- G02C5/14—Side-members
- G02C5/20—Side-members adjustable, e.g. telescopic
-
- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C5/00—Constructions of non-optical parts
- G02C5/12—Nose pads; Nose-engaging surfaces of bridges or rims
- G02C5/122—Nose pads; Nose-engaging surfaces of bridges or rims with adjustable means
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Ophthalmology & Optometry (AREA)
- Optics & Photonics (AREA)
- Eyeglasses (AREA)
Abstract
The invention discloses near-distance used myopia-preventing glasses and a matching method of the near-distance used myopia-preventing glasses. The near-distance used myopia-preventing glasses comprise a glasses frame, wherein glasses legs are hinged to two sides of the glasses frame, wherein myopia-preventing lenses are mounted in the glasses frame and the thicknesses of the myopia-preventing lenses are gradually reduced from nasal side ends to bitamporal ends, the front surfaces and the rear surfaces of the myopia-preventing lenses are curved surfaces, myopia is prevented from being further deepened while the short-distance use of eyes is conducted through designing the myopia-preventing lenses, and the myopia degree can be effectively lowered; adjusting screws are designed on the glasses legs, and relative included angles between the glasses legs and the glasses frame are changed through adjusting the adjusting screws to adjust the tightness degree of the glasses legs while being worn so as to replace the traditional tools of pliers and the like to forcedly change the shape of the glasses frame to adjust the tightness of the glasses; and nose pads are designed to be connected by buckles, thereby being more convenient in installation and disassembly, and in addition, grooves are formed in main bodies of the nose pads to enlarge the deformation amount of the main bodies of the nose pads to protect eyes conveniently.
Description
Technical field：
The present invention relates to related preventive technical field, and in particular to a kind of closely to use anti-myopia glasses and its apolegamy side
Method.
Background technology：
For twenty-twenty vision, it is imaged on the retina after parallel rays is pleasing to the eye, and for myopia, parallel rays enters
Before retina being imaged on after eye.When close eye pleasing to the eye light be divergent rays, divergent rays through dioptric system reflect into
Row imaging, for twenty-twenty vision, myopia, the different dioptric degree of myopia, after the position of imaging is located at retina respectively, view
Before film, retina, at this moment in order to it is clear that eyes will adjust ciliary muscle contraction or loosen drive it is lenticular thickening or become
Thin, when long-time sees near, ciliary muscle will for a long time be in contraction state, cause visual fatigue, myopia further to be deepened.Pass
System method is that the purpose for loosening ciliary muscle is reached using lower degree convex lenses, but for the people of different refractive diopters, it is clear that
It is limited to carry out pre- myopia prevention effect only with lower degree convex lenses.
The content of the invention：
The purpose of the present invention is exactly to make up the deficiencies in the prior art, there is provided it is a kind of closely with anti-myopia glasses and
Its matching method, it has the advantages that simple structure, effectively prevention myopia development, matching method are accurate simple, solves existing
Problem present in technology.
The present invention is for the solution technical scheme that is used of above-mentioned technical problem：
A kind of closely to use anti-myopia glasses, including picture frame, picture frame both sides are hinged with temple, myopia prevention are provided with picture frame
Eyeglass, the myopia-proof lens are tapered into from nasal side end to the thickness of temporo side, the preceding surface and rear surface of myopia-proof lens
It is curved surface.
The myopia-proof lens nasal side end thickness is 3-10mm.
The myopia-proof lens temporo side thickness is 1-5mm.
The picture frame is full frame picture frame.
The frame height of the picture frame is 25-30mm.
Some adjusting screws are interval with one end end face that the temple is hinged with picture frame.
Two adjusting screws are interval with one end end face that the temple is hinged with picture frame.
Temple end inner surface is provided with rill.
The picture frame is provided with and its integrally formed nose support.
It is preferred that, the picture frame is provided with nose support, and nose support includes nose support body and connector, and connector one end is consolidated with picture frame
Fixed, the other end is with nose support body by snapping connection.
The nose support body is provided with groove, and clamp is respectively equipped with the nose support inner body wall of groove both sides, is set on clamp
There is draw-in groove, connector is provided with two claws corresponding with draw-in groove with one end that nose support body is connected, and claw is connected with draw-in groove
Formation is snapped connection.
The nose support body that the nose support body is made for elastomeric material.
The elastomeric material is silica gel.
It is a kind of closely with the matching method of anti-myopia glasses, comprise the following steps：
(1) it is 0.8 or 1.0 in simple eye correcting defects of vision, under the principle that eyes are corrected defects of vision more than or equal to 1.0, by synthesis
Optometry unit detects the vision correction diopter of eyes, is designated as D；
(2) the close eye distance of eyes is measured by ruler, L is designated as；
(3) according to close eye apart from L, on the basis of comprehensive optometry instrument, using closely sighting target system module is used, make comprehensive
The distance for closing the closely sighting target on optometry unit is equal to L, on the basis of vision correction diopter D, positive negative is carried out to eyes
To regulation, and the positive relative adjustment value PRA and negative relative adjustment value NRA of eyes are recorded, when positive relative adjustment value is more than negative pair
During regulated value, then vision correction diopter D values are correct, when positive relative adjustment value is less than or equal to negative relative adjustment value, then
Vision correction diopter D value mistakes, then give a test of one's eyesight and correct diopter D again according to above-mentioned steps (1) and (2), until
Value is correct；
(4) according to the correct vision correction diopter D of value and its corresponding negative relative adjustment value NRA, when simple eye correction
When eyesight is 0.8, the negative relative adjustment value of close eye is designated as D ", D "=0.8 × NRA, when it is simple eye correct defects of vision for 1.0 when,
D "=1.0 × NRA；
(5) anti-myopia glasses number of degrees D' computing formula：
D '=D "-| D |
According to above-mentioned formula by the negative relative adjustment value D of vision correction diopter D and close eye " substitute into calculate it is anti-
Spectacles number of degrees D'；"-" in D' numerical value refers to select concave lens, and "+" refers to select hyperopic lens；
(6) when+2.00≤D'≤- 3.00, light refractive index n is equal to 1.56 or 1.61, when -3.00 ＜ D'≤- 6.00
When, light refractive index n is equal to 1.61 or 1.67, and as -6.00 ＜ D', light refractive index n is equal to 1.67；
(7) the near of eyes is measured by centrometer and uses interpupillary distance PD'；
(8) as L ＜ 30cm, prism degree △ X=3.5, as 30≤L ＜ 40cm, prism degree △ X=3.0, as 40≤L
During ＜ 50cm, prism degree △ X=2.5；
(9) according to anti-myopia glasses number of degrees D', the light refractive index n and prism degree △ X for measuring, selection the application's is anti-near
Visor piece；
(10) picture frame of the application is selected, picture frame is worn, the pupil high level PH of eyes is then measured with pupil instrument high；
(11) according to pupil high level PH, nearly interpupillary distance PD' and picture frame, myopia-proof lens are cut by lens edge grinding machine,
The myopia-proof lens that will be cut are assembled with selected picture frame.
It is preferred that, when+2.00≤D'≤- 3.00, light refractive index n is equal to 1.56 to the step (6), as -3.00 ＜ D'
When≤- 6.00, light refractive index n is equal to 1.61, and as -6.00 ＜ D', light refractive index n is equal to 1.67.
According to the matching method for closely using anti-myopia glasses of the application, left eye and right eye that can be respectively to human eye enter
The apolegamy of row myopia-proof lens.
The present invention uses such scheme, for the technical problem that existing anti-myopia glasses are present, devises one kind closely
With anti-myopia glasses and its matching method, by designing myopia-proof lens, prevent near-sighted further when realizing to close eye
Deepen, while myopia degree can be reduced effectively；By designing adjusting screw in temple, mirror is changed by adjusting adjusting screw
Relative angle between leg and picture frame, so as to adjust elastic when temple is worn, is substituted tradition and is changed by force by instruments such as pliers
The change picture frame type problem elastic to reach regulation glasses；By being designed to nose support to snap connection mode, installation is easily facilitated
Dismounting, and groove is set in nose support body, expand the deflection of nose support body, it is easy to protect eyes；Prevented by designing the application
The matching method of spectacles, can fast and accurately measure the eyes basic parameter for drawing client, conveniently select this
The myopia-proof lens and picture frame of application.
Brief description of the drawings：
Fig. 1 is schematic structural view of the invention；
Fig. 2 is myopia-proof lens structural representation of the present invention；
Fig. 3 is temple structural representation of the present invention；
Fig. 4 is A portions enlarged drawing in Fig. 3；
Fig. 5 is nose support structural representation of the present invention；
Wherein, 1, picture frame, 2, temple, 3, myopia-proof lens, 4, nasal side end, 5, temporo side section, 6, adjusting screw, 7, rill,
8th, nose support, 9, nose support body, 10, connector, 11, groove, 12, clamp, 13, draw-in groove, 14, claw.
Specific embodiment：
The present invention will be further described with embodiment below in conjunction with the accompanying drawings：
As Figure 1-5, a kind of closely to use anti-myopia glasses, including picture frame 1, the both sides of picture frame 1 are hinged with temple 2, mirror
Myopia-proof lens 3 are installed in frame 1, myopia-proof lens 3 are tapered into from nasal side end 4 to the thickness of temporo side 5, myopia-proof lens
3 preceding surface and rear surface are curved surface, by designing myopia-proof lens 3, prevent near-sighted further when realizing to close eye
Deepen, while myopia degree can be reduced effectively.
The thickness of 3 nasal side end of myopia-proof lens 4 is 3-10mm.
The thickness of 3 temporo side of myopia-proof lens 5 is 1-5mm.
Picture frame 1 is full frame picture frame, because myopia-proof lens 3 temporo side, 5 thickness of the application are relatively thin, full frame picture frame energy
Preferably fix myopia-proof lens 3.
The frame height of picture frame 1 is 25-30mm, is solved because pupil changing matter picture high falls in the non-central region of minute surface.
Some adjusting screws 6 are interval with one end end face that temple 2 is hinged with picture frame 1, are adjusted by being designed in temple 2
Section screw 6, by adjusting the relative angle between the change temple 2 of adjusting screw 6 and picture frame 1, so as to adjust when temple 2 is worn
It is elastic, substitute the tradition problem that by instruments such as pliers to change the shape of picture frame 1 by force elastic to reach regulation glasses.
Two adjusting screws 6 are interval with one end end face that temple 2 is hinged with picture frame 1.
The end inner surface of temple 2 is provided with rill 7, and glasses slide when effectively preventing wearing spectacles.
Picture frame 1 is provided with and its integrally formed nose support 8.
It is preferred that, picture frame 1 is provided with nose support 8, and nose support 8 includes nose support body 9 and connector 10, the one end of connector 10 and picture frame
1 fixes, and the other end, by snapping connection, snaps connection more convenient to install and dismounting with nose support body 9.
Nose support body 9 is provided with groove 11, and clamp 12, clamp are respectively equipped with the inwall of nose support body 9 of the both sides of groove 11
12 are provided with draw-in groove 13, and connector 10 is provided with two claws 14 corresponding with draw-in groove 13, claw with one end that nose support body 9 is connected
14 snap connection with the mating connection formation of draw-in groove 13, by setting groove 11 in nose support body 9, expand the deformation of nose support body 9
Amount, reduces glasses to the pressure of nose, is easy to protect eyes.
The nose support body 9 that nose support body 9 is made for elastomeric material.
Elastomeric material is silica gel.
Embodiment 1
The present embodiment specifically matches step by taking the left eye apolegamy of Mrs Wang as an example：
(1) it is 0.8 in simple eye correcting defects of vision, under the principle that eyes are corrected defects of vision more than or equal to 1.0, by comprehensive optometry instrument
The left vision correction diopter D=-3.00 of detection detection Mrs Wang；
(2) Mrs's Wang left eye close eye is measured apart from L=40cm by ruler；
(3) according to close eye apart from L=40cm, on the basis of comprehensive optometry instrument, sighting target system mould is used using near
Block, it is right on the basis of vision correction diopter D=-3.00 by the distance modulated 40cm of the closely sighting target of comprehensive optometry instrument
Eyes carry out positive and negative relative adjustment, and record the positive relative adjustment value PRA=-3.25 and negative relative adjustment value NRA=+ of eyes
2.75, because 3.25 more than 2.75, therefore vision correction diopter D=-3.00 values are correct；
(4) according to the correct vision correction diopter D=-3.00 of value and its corresponding negative relative adjustment value NRA=+
2.75, the negative relative adjustment value D of close eye "=0.8 × NRA=2.20；
(5) anti-myopia glasses number of degrees D' computing formula：
D '=D "-| D |=2.20-3.00=-0.80；
D'=-0.80 refers to apolegamy concave lens, and the number of degrees of concave lens are 0.80；
(6) according to D'=-0.80, light refractive index n=1.56 is selected；
(7) the near of Mrs's Wang left eye is measured by centrometer and uses interpupillary distance PD'=57mm；
(8) when due to L=40cm, therefore prism degree △ X=2.5 are selected；
(9) anti-myopia glasses number of degrees D'=-0.8, the light refractive index n=1.56 and prism degree △ according to Mrs's Wang left eye
XL=2.5, producer contacts with eyeglass, selects corresponding the application myopia-proof lens；
(10) Mrs Wang selectes the picture frame of the application and wears, and the pupil high level PH=of Mrs Wang is then measured by pupil instrument high
25mm；
(11) picture frame of pupil high level PH=25mm, nearly use interpupillary distance PD'=57mm and selection according to Mrs Wang, by eyeglass
Sanding machine is cut to the myopia-proof lens for selecting, and the left eye myopia-proof lens that will be cut are assembled with selected picture frame.
Apolegamy mode in embodiment 1 can accordingly measure the right eye parameter of Mrs Wang, and then match out phase
Corresponding right eye myopia-proof lens, and corresponding working process is carried out, finally assembled with selected picture frame.
Embodiment 2
The present embodiment is by taking the right eye apolegamy of Mr. Li as an example：
(1) it is 1.0 in simple eye correcting defects of vision, under the principle that eyes are corrected defects of vision more than or equal to 1.0, by comprehensive optometry instrument
The right vision correction diopter D=-6.00 of detection detection Mr. Li；
(2) Mr.'s Li right eye close eye is measured apart from L=30cm by ruler；
(3) according to close eye apart from L=30cm, on the basis of comprehensive optometry instrument, sighting target system mould is used using near
Block, it is right on the basis of vision correction diopter D=-6.00 by the distance modulated 30cm of the closely sighting target of comprehensive optometry instrument
Eyes carry out positive and negative relative adjustment, and record the positive relative adjustment value PRA=-3.50 and negative relative adjustment value NRA=+ of eyes
3.00, because 3.50 more than 3.00, therefore vision correction diopter D=-6.00 values are correct；
(4) according to the correct vision correction diopter D=-6.00 of value and its corresponding negative relative adjustment value NRA=+
3.00, the negative relative adjustment value D of close eye "=1.0 × NRA=+3.00；
(5) anti-myopia glasses number of degrees D' computing formula：
D '=D "-| D |=3.00-6.00=-3.00；
D'=-3.00 refers to apolegamy concave lens, and the number of degrees of concave lens are 3.00.
(6) according to D'=-3.00, light refractive index n=1.61 is selected；
(7) the near of Mr.'s Li right eye is measured by centrometer and uses interpupillary distance PD'=58mm；
(8) when due to L=30cm, therefore prism degree △ X=3.0 are selected；
(9) anti-myopia glasses number of degrees D'=-3.00, the light refractive index n=1.61 and prism degree according to Mr.'s Li right eye
△XL=3.0, producer contacts with eyeglass, selects corresponding the application myopia-proof lens；
(10) Mr. Li selectes the picture frame of the application and wears, and the pupil high level PH=of Mr. Li is then measured by pupil instrument high
26mm；
(11) picture frame of pupil high level PH=26mm, nearly use interpupillary distance PD'=58mm and selection according to Mr. Li, by eyeglass
Sanding machine is cut to the myopia-proof lens for selecting, and the right eye myopia-proof lens that will be cut are assembled with selected picture frame.
Apolegamy mode in embodiment 2 can accordingly measure the left eye parameter of Mr. Li, and then match out phase
Corresponding left eye myopia-proof lens, and corresponding working process is carried out, finally assembled with selected picture frame.
Embodiment 3
The present embodiment is by taking the left eye apolegamy of granddaughter scholar as an example：
(1) it is 1.0 in simple eye correcting defects of vision, under the principle that eyes are corrected defects of vision more than or equal to 1.0, by comprehensive optometry instrument
The left vision correction diopter D=-1.00 of detection detection granddaughter scholar；
(2) granddaughter scholar's left eye close eye is measured apart from L=40cm by ruler；
(3) according to close eye apart from L=40cm, on the basis of comprehensive optometry instrument, sighting target system mould is used using near
Block, it is right on the basis of vision correction diopter D=-1.00 by the distance modulated 40cm of the closely sighting target of comprehensive optometry instrument
Eyes carry out positive and negative relative adjustment, and record the positive relative adjustment value PRA=-3.50 and negative relative adjustment value NRA=+ of eyes
2.00, because 3.5 more than 2.00, therefore vision correction diopter D=-1.00 values are correct；
(4) according to the correct vision correction diopter D=-1.00 of value and its corresponding negative relative adjustment value NRA=+
2.00, the negative relative adjustment value D of close eye "=1.0 × NRA=+2.00；
(5) anti-myopia glasses number of degrees D' computing formula：
D '=D "-| D |=2.00-1.00=+1.00；
D'=+1.00 refers to apolegamy hyperopic lens, and the number of degrees of hyperopic lens are 1.00.
(6) according to D'=+1.00, light refractive index n=1.56 is selected；
(7) the near of granddaughter scholar's left eye is measured by centrometer and uses interpupillary distance PD'=58mm；
(8) when due to L=40cm, therefore prism degree △ X=2.5 are selected；
(9) anti-myopia glasses number of degrees D'=+1.00, the light refractive index n=1.56 and prism degree according to granddaughter scholar's left eye
△XL=2.5, producer contacts with eyeglass, selects corresponding the application myopia-proof lens；
(10) granddaughter scholar selectes the picture frame of the application and wears, and the pupil high level PH=of granddaughter scholar is then measured by pupil instrument high
26mm；
(11) picture frame of pupil high level PH=26mm, nearly use interpupillary distance PD'=58mm and selection according to granddaughter scholar, by eyeglass
Sanding machine is cut to the myopia-proof lens for selecting, and the left eye myopia-proof lens that will be cut are assembled with selected picture frame.
Apolegamy mode in embodiment 3 can accordingly measure the right eye parameter of granddaughter scholar, and then match out phase
Corresponding right eye myopia-proof lens, and corresponding working process is carried out, finally assembled with selected picture frame.
Above-mentioned specific embodiment cannot function as limiting the scope of the invention, for the technology people of the art
For member, any alternate modification or conversion made to embodiment of the present invention are all fallen within protection scope of the present invention.
The present invention does not describe part in detail, is the known technology of those skilled in the art of the present technique.
Claims (10)
1. one kind closely uses anti-myopia glasses, it is characterised in that：Including picture frame, picture frame both sides are hinged with peace in temple, picture frame
Equipped with myopia-proof lens, the myopia-proof lens are tapered into from nasal side end to the thickness of temporo side, the preceding table of myopia-proof lens
Face and rear surface are curved surface.
2. according to claim 1 a kind of closely with anti-myopia glasses, it is characterised in that：The myopia-proof lens nasal side
End thickness is 3-10mm, and the myopia-proof lens temporo side thickness is 1-5mm.
3. according to claim 1 a kind of closely with anti-myopia glasses, it is characterised in that：The picture frame is full frame mirror
Frame, the frame height of picture frame is 25-30mm.
4. according to claim 1 a kind of closely with anti-myopia glasses, it is characterised in that：The temple is hinged with picture frame
One end end face on be interval with some adjusting screws.
5. according to claim 1 a kind of closely with anti-myopia glasses, it is characterised in that：Temple end inner surface
It is provided with rill.
6. according to claim 1 a kind of closely with anti-myopia glasses, it is characterised in that：The picture frame is provided with and it
Integrally formed nose support.
7. according to claim 1 a kind of closely with anti-myopia glasses, it is characterised in that：The picture frame is provided with nose
Support, nose support includes nose support body and connector, and connector one end is fixed with picture frame, and the other end is connected with nose support body by buckle
Connect.
8. according to claim 7 a kind of closely with anti-myopia glasses, it is characterised in that：The nose support body is provided with
Groove, is respectively equipped with clamp in the nose support inner body wall of groove both sides, clamp is provided with draw-in groove, and connector is connected with nose support body
One end be provided with two claws corresponding with draw-in groove, claw is connected to be formed with draw-in groove and snaps connection, and the nose support body is
The nose support body that elastomeric material is made.
9. a kind of as claimed in claim 1 closely with the matching method of anti-myopia glasses, it is characterised in that：Including following step
Suddenly：
(1) it is 0.8 or 1.0 in simple eye correcting defects of vision, under the principle that eyes are corrected defects of vision more than or equal to 1.0, by comprehensive optometry
Instrument detects the vision correction diopter of eyes, is designated as D；
(2) the close eye distance of eyes is measured by ruler, L is designated as；
(3) according to close eye apart from L, on the basis of comprehensive optometry instrument, using closely sighting target system module is used, comprehensive testing is made
The distance of the closely sighting target on light instrument is equal to L, on the basis of vision correction diopter D, eyes is carried out with positive and negative relative tune
Section, and the positive relative adjustment value PRA and negative relative adjustment value NRA of eyes are recorded, when positive relative adjustment value is more than negative relative adjustment
During value, then vision correction diopter D values are correct, when positive relative adjustment value is less than or equal to negative relative adjustment value, then eyesight
Correction diopter D value mistakes, then give a test of one's eyesight and correct diopter D, until value again according to above-mentioned steps (1) and (2)
Correctly；
(4) according to the correct vision correction diopter D of value and its corresponding negative relative adjustment value NRA, corrected defects of vision when simple eye
For 0.8 when, the negative relative adjustment value of close eye is designated as D ", D "=0.8 × NRA, when it is simple eye correct defects of vision for 1.0 when, D "=
1.0×NRA；
(5) anti-myopia glasses number of degrees D' computing formula：
D '=D "-| D |
D '=D "-| D |
According to above-mentioned formula by the negative relative adjustment value D of vision correction diopter D and close eye " substitute into and calculate myopia prevention
Eyeglass lens power D'；"-" in D' numerical value refers to select concave lens, and "+" refers to select hyperopic lens；
(6) when+2.00≤D'≤- 3.00, light refractive index n is equal to 1.56 or 1.61, when -3.00 ＜ D'≤- 6.00, light
Learn refractive index n and be equal to 1.61 or 1.67, as -6.00 ＜ D', light refractive index n is equal to 1.67；
(7) the near of eyes is measured by centrometer and uses interpupillary distance PD'；
(8) as L ＜ 30cm, prism degree △ X=3.5, as 30≤L ＜ 40cm, prism degree △ X=3.0, as 40≤L ＜
During 50cm, prism degree △ X=2.5；
(9) according to anti-myopia glasses number of degrees D', the light refractive index n and prism degree △ X for measuring, the Nearsighted prevention spectacles of the application are selected
Piece；
(10) picture frame of the application is selected, picture frame is worn, the pupil high level PH of eyes is then measured with pupil instrument high；
(11) according to pupil high level PH, nearly interpupillary distance PD' and picture frame, myopia-proof lens are cut by lens edge grinding machine, will be cut
Good myopia-proof lens are assembled with selected picture frame.
10. according to claim 9 closely with the matching method of anti-myopia glasses, it is characterised in that：The step (6)
When+2.00≤D'≤- 3.00, light refractive index n is equal to 1.56, and when -3.00 ＜ D'≤- 6.00, light refractive index n is equal to
1.61, as -6.00 ＜ D', light refractive index n is equal to 1.67.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710205030.XA CN106681020A (en) | 2017-03-31 | 2017-03-31 | Near-distance used myopia-preventing glasses and matching method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710205030.XA CN106681020A (en) | 2017-03-31 | 2017-03-31 | Near-distance used myopia-preventing glasses and matching method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106681020A true CN106681020A (en) | 2017-05-17 |
Family
ID=58829356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710205030.XA Pending CN106681020A (en) | 2017-03-31 | 2017-03-31 | Near-distance used myopia-preventing glasses and matching method thereof |
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Application publication date: 20170517 |