WO2024107083A1

WO2024107083A1 - Vision testing system

Info

Publication number: WO2024107083A1
Application number: PCT/RU2023/000380
Authority: WO
Inventors: Игорь Александрович ТОРОПОВ; Дарья Дмитриевна МЕРЕНКОВА
Original assignee: Игорь Александрович ТОРОПОВ
Priority date: 2022-11-15
Filing date: 2023-12-06
Publication date: 2024-05-23

Abstract

The invention relates to medicine. A vision testing system includes a portable vision testing device, a docking station, and a computer. The vision testing device is in the form of a spherical display screen situated inside a spherical housing, said housing being equipped with a viewing window and being attached to a handle having on the surface thereof a button for confirming the visibility of test patterns displayed on the screen. The docking station has a socket for receiving the vision testing device and is further equipped with a speaker and a control panel with a display and a fingerprint scanner, as well as sockets for connection to a mains power supply and to the computer, and a slot for receiving a card that allows the recording of encrypted data. The features of the computer allow for the installation and use of software and/or messaging software that supports a chatbot, for interaction with the vision testing device and the docking station. All of the elements of the system are equipped with modules for receiving and transmitting data via a wireless network to allow the exchange of data therebetween. The invention provides for more accurate detection of underlying eye conditions and neurological diseases that cause a decline in vision, and also provides for secure storage and transmission of data.

Description

Vision testing system

Field of technology

The invention relates to ophthalmological equipment, in particular to vision testing systems, and can be used in the production of medical equipment for vision testing.

State of the art

A number of portable ophthalmological devices are known from the prior art that allow testing a patient’s field of vision, including those equipped with means of transmitting data to the user’s personal device via a wireless network.

Thus, from document US 2022218193 A1, a portable device for checking eye health is known, which is augmented reality glasses, which include in their design a number of diagnostic tools for studying various eye parameters and vision characteristics, in particular, visual field diagnostic tools and a video camera that allows you to monitor movement of the patient's pupil during the diagnostic procedure. The glasses are equipped with a means of transmitting data via a wireless network, such as WiFi or Bluetooth, to the user's portable device, such as a laptop or smartphone. It is also possible to directly connect the glasses to a portable device using a cable. The glasses allow you to conduct tests, including using points or objects displayed on the screen.

From document US 2022313076 A1, a portable device for testing vision is known, which is a headset with two screens located opposite the patient’s eyes. In a particular embodiment, these can be augmented reality glasses. The headset is equipped with a user interface, means of receiving and transmitting data over a wireless network, and a feedback button that allows the user to confirm the visibility of the test objects shown to him. The user interface may include a means of transmitting audio information and a microphone for entering voice responses. The information received by the headset during the vision test is transmitted to the user's portable device, such as a smartphone or personal computer of the attending physician, and can then be stored in the memory of this device or transmitted to the server. A barcode or number can be used to identify the user. The device allows you to study the patient's visual field and identify blind spots, as well as test color perception acuity by displaying green, red and blue test objects on the screen.

The disadvantages of the described technical solutions include the shape of these devices. The screens located opposite the patient's eyes are flat, which does not allow objects to be placed on them for testing the peripheral areas of the retina. In addition, the location of the screens in the frames of glasses does not allow detecting prolapse of the upper-inner quadrant (“nasal step”) due to the presence of natural mechanical barriers caused by the structure of the face. An additional disadvantage of making the vision tester in the form of glasses is that their size is not universal - different users will need glasses of different sizes.

A portable device for studying the visual field is also known from the prior art, where rows of test objects are located on the inner surface of the spherical screen. This device is described in document RU 2285440 C2. A spherical screen with rows of test objects is located on the inside of a spherical body equipped with an inspection hole and a handle. The diameters of the housing, display screen with rows of light points and viewing window are respectively (2.25 - 2.4)L, (1.75 - 1.9)L and (0.85 - 1.1)L, where L is horizontal size of the human eye socket. Test objects are located along each meridian in increments of 10°, while on even meridians the first test object has a coordinate of 10°, and on odd meridians - 5°. On the handle of the device there is a button for the patient to confirm the visibility of the demonstrated test patterns. In one embodiment, white LEDs are used as test objects. In another embodiment, colored ones (red and green) are used. The spherical shape of the display screen makes it possible to study the peripheral areas of the retina, thereby providing complete information about the patient's visual field and allowing the detection of a number of diseases, such as glaucoma, in the early stages.

However, this device requires a wired connection to a power source and a rather massive control unit, which limits the possibilities of its use. In addition, it can be used to perform only one type of test - either to test the visual field or to test color acuity separately. One device cannot be used to perform both types of tests.

The proposed vision testing system allows a wide range of tests to be performed using one device. In particular, examine the central and peripheral fields of vision in static and dynamic modes, color perception acuity; Perform individual ophthalmological tests and tests to detect neurological diseases.

The system includes a compact wireless device that allows testing of one eye per procedure. Thanks to its rounded shape and small size, the device can be freely positioned in front of the patient's eye without any difficulties associated with natural anatomical obstacles such as the nose and brow ridges. The viewing window of the device fixes the patient's eyelids in one position, which eliminates errors introduced by blinking. The accuracy of the test is further increased by including a video camera in the design of the device that tracks the movements of the pupil of the eye being tested.

The system also includes a multi-function docking station equipped with a control panel with display and a capacitive fingerprint scanner. In the first embodiment, the docking station is small in size and portable; in the second embodiment, the docking station is stationary. The device and docking station are equipped with memory modules and units for receiving and transmitting data via a wireless network. Testing data can be stored both on the server, in the memory of the device and/or docking station, and on the personal computer of the user or his attending physician. The docking station also has a slot for installing a card for recording data using encryption, which is necessary when transmitting confidential medical information.

The device's memory modules and docking station allow you to download and store individual vision test programs, as well as personal patient data. Possibility of data transfer via wireless network makes the vision testing process more convenient, while increasing the safety of using the device. The presence of a docking station equipped with a control panel with a display ensures ease of interaction with the ophthalmological device and the process of transferring data to the user’s/attending physician’s personal computer. And the presence of fingerprint identification means allows you to quickly and accurately identify the user, without requiring the use of any additional elements containing, for example, a barcode.

Interaction with the device and docking station can be carried out either using a specialized application installed on the user’s portable device or computer, or using a chat bot based on messenger applications, social networks and work platforms such as Telegram, WeChat, WhatsApp, Facebook, VKontakte, Skype and the like.

Thus, the object of the present invention is to provide a vision testing system, including a compact wireless vision testing device that allows a wide range of ophthalmological tests, in particular, to examine the peripheral visual field and color perception acuity of the patient's eye; a docking station equipped with a control panel with a display and a fingerprint sensor, allowing wired and wireless data transfer, including the use of encryption algorithms; and a computer device with the ability to install software for interacting with the device and the docking station and/or with the ability to install at least one messenger application, supporting chatbot for interaction with the device and docking station.

The technical result of the claimed invention is the development of a mobile system for checking vision while simultaneously ensuring increased accuracy in identifying hidden eye pathologies and neurological diseases leading to degradation of visual perception, including glaucoma and multiple sclerosis, taking into account the anatomical features of the patients' facial structure; as well as increasing the security of data storage and transmission.

Disclosure of the Invention

The goal, the technical result required and obtained when using the invention is achieved by the fact that a system for testing vision, including a portable device for examining the eye, a docking station and a computer, where the device for examining the eye is characterized by the presence of a spherical screen in a spherical body with a viewing window, handles with a button for receiving the patient’s response, a power supply, a module for storing, processing and transmitting information, including, among other things, means for receiving and transmitting data via a wireless network and means for playing audio messages; the opening of the viewing window is made with the possibility of installing a retainer with a corrective lens in it and is equipped with an adaptive contact ring, selected depending on the anatomical shape of the patient’s face; the docking station is made with the ability to connect one or more data cables to it and is characterized by the presence of: a control panel with a display and a fingerprint scanner, a socket for installing and charging an eye examination device, a power supply, a module for storing, processing and transmitting information, including , including means for playing audio messages and means for receiving and transmitting data over a wireless network; and made with the ability to install an additional memory module that supports the data encryption function, the computer is designed to exchange data via a wireless network, and its characteristics allow you to install and use special software and/or an application that supports a chatbot to interact with the examination device eyes and docking station.

Alternatively, the spherical screen is designed to display point light test objects, is equipped with backlighting that meets the Goldmann standard, and means for recording the movement of the pupil; and the handle is located in the lower part of the case and is designed to be connected to the power socket of the docking station.

Alternatively, the opening of the viewing window is made round, and the diameters of the spherical part of the body of the device for testing vision, the demonstration screen and the viewing window are equal to 2.25-2.4 L, respectively; 1.75-1.9 L and 0.85-1.1 L, where L is the horizontal size of the human eye socket. In turn, the adaptive contact ring is removable.

Also, the adaptive slip ring is made of elastic material.

Variably, point light test objects are placed over the entire surface area of the screen in a certain order.

One test object is located opposite the center of the viewing window, and the remaining test objects are distributed with equal spacing along the meridians, spaced at an equal distance from each other.

Variably, 144 light test objects are located in 10° increments along 16 meridians, spaced by 22.5°, where the first test object of the odd meridian has an initial angular coordinate of 5°, the initial angular coordinate of the first test object of an even meridian is 10°, and the origin coincides with the location of the central test object.

LEDs placed in the screen holes with the ability to change the color of the glow are used as light test objects.

Variably, the diodes support operating modes in at least white, yellow, blue, red and green.

Additionally contains a video camera to record the movement of the patient's pupil.

At the same time, the button for receiving the patient’s response is equipped with audio alerts.

The eye examination device is configured to connect a data cable.

Optionally, the eye examination device is configured to connect a battery charging cable. Variably, the docking station is made portable or stationary.

Any Micro SD card, including Micro SD TransFlash, Micro SDHC or Micro SDXC, can be used as a memory module for recording encrypted data.

A capacitive scanner is used as a fingerprint scanner

The docking station is configured to charge the battery of the device installed in the socket, both from its own battery and from the power supply network to which it is connected.

Optionally, the docking station is designed with the ability to connect a cable for charging the battery.

In turn, a computer is a desktop computer, laptop, tablet or smartphone.

Data exchange between the eye examination device, the docking station and the computer is carried out using any type of communication/connection, such as Wi-Fi, and/or Bluetooth, and/or mobile cellular communications GSM, 3G, 4G, 5G, LTE, and /or through ultra-low power data transmission channels forming complex wireless networks with mesh topology, such as ZigBee and/or LoRa and/or LoRaWAN and/or LPWAN and/or 6L0WPAN and/or Z-wave.

The characteristics of the computer allow you to install and use one or more messenger applications, social networks or working platforms that support a chatbot, including Telegram, WeChat, WhatsApp, Facebook, VKontakte, Skype.

Variably, the adaptive slip ring can be made in the form of a standard circle, oval, or in the form an asymmetrical ellipse, a polygon with rounded corners, for example, a triangle, including the Reuleaux triangle, a square, a Pentagon, a hexagon, a heptagon, and also have the shape of a complex geometric curvilinear figure that follows the structure of the face of a particular patient, and the size of the contact ring is selected in accordance with the patient’s age .

The stated goal, the technical result required and obtained when using the invention is achieved by the fact that in the method of testing vision using the claimed system, the user is identified by scanning a fingerprint on a docking station scanner or by authorizing using a computer, selects and launches the required testing program from the menu displayed on the docking station control panel display or on the computer screen, in accordance with instructions broadcast through the speaker of the eye examination device or docking station, places the device with the viewing window opposite the eye being examined, keeping the other eye closed, and carries out the commands required to testing, upon completion of testing, the computer analyzes the received data, the results of which notify the user by displaying them on its own screen or transmitting a voice message using the device’s speaker or docking station.

Test data is sent to the server.

Brief description of drawings

The essence of the invention is illustrated by drawings.

Figure 1 shows a schematic representation of an example implementation of the proposed system for vision testing. In this example implementation, the system consists of 1 test device view, 2 - docking station, 3 - desktop computer. The following symbols are also used in the drawing:

4 - spherical body of the device for testing vision;

5 - instrument handle;

6 - demonstration screen;

7 - line along which the light test objects are located;

8 - video camera;

9 - button to confirm the visibility of the demonstrated test patterns;

10 - device speaker; 1 - connector for connecting the charging/data cable;

12 - microcomputer of the device;

13 - unit for receiving and transmitting data via the device’s wireless network;

14 - device memory block;

15 - device battery;

16 - connector for installing device 1 on docking station 2;

17 - display of the docking station control panel;

18 - fingerprint scanner;

19 - docking station speaker;

20 - microcomputer docking station;

21 - block for receiving and transmitting data via the wireless network of the docking station;

22 - memory block;

23 - docking station battery;

24 - connector for connecting a data cable;

25 - slot for installing a card for recording encrypted data;

26 - power cable connector; 27 - power cable;

28 - data cable;

29 - computer monitor 3;

30 - system unit of computer 3;

31 - processor;

32 - block for receiving and transmitting data via a wireless computer network;

33 - computer memory block;

34 - cable connecting the system unit 30 to the monitor 29;

35 - adaptive slip ring;

36 - screws;

37 - cover;

38 - text objects;

39 - viewing window of the device.

Wavy lines indicate the directions of data transmission over a wireless network. This example shows a variant of data exchange between system elements, where data exchange between the device and the docking station, as well as between the device and the computer, is carried out wirelessly, and the docking station is connected to the computer directly using a cable.

Data exchange between the computer and the docking station can also be carried out wirelessly. In the example presented in Fig. 1, this option for exchanging data between the computer and the docking station is not shown.

It should be noted that blocks 12 - 15 are located inside the device body, for example, inside its handle, and in the drawing they are shown outside its body for clarity.

Thin arrows show the directions of data and signal transmission. Thus, microcomputer 12 sends to test objects, located along the meridians 7, on and off signals in accordance with the testing program, sends voice instructions to the speaker 10, receives the signal of pressing the button 9 and the data received by the video camera 8. In the preferred embodiment of the device, the button 9 is equipped with a means of sound notification of pressing, but in the drawings These funds are not displayed. The drawings also do not show means for illuminating the inner surface of the screen 6.

The microcomputer 12 also processes data transmitted from other devices 2 and 3 of the system wirelessly using the unit 13 and can also wirelessly send data to these devices. If necessary, microcomputer 12 can write or retrieve data from memory unit 14. All electronic components of the vision test device are powered by battery 15.

In a similar way, interactions are carried out between the microcomputer 20, the data reception and transmission unit via a wireless network 21 and the memory unit 22 of the docking station 2. In addition to the main memory unit 22, the design of the docking station also allows for the possibility of installing an additional memory card for recording encrypted data in connector 25. Encryption may be performed by the microcomputer 20 using known algorithms.

Docking station 2 can work in stand-alone mode, without connecting to the power supply. In this case, all electronic components of the docking station 2 are powered by battery 23. Battery 23 can also be used to charge device 1 when the latter is installed in slot 16. When the docking station is connected to the network, device 1 is charged end-to-end from the network nutrition. Charging device 1 can also be connected to the network directly by connecting the cable to connector 11.

Elements 16 - 19 are made on the surface of the housing of the docking station 2, and elements 20 - 23 are made inside its housing. In Fig. 1, elements 16 - 23 are shown in the same plane to simplify the perception of the circuit.

The dotted arrow indicates the direction of installation of device 1.

The processor 31 of the computer 3 can also write to and retrieve the necessary data from the memory unit 33. Reception and transmission of data between computer 3 and other devices of the system can be carried out wirelessly using unit 32. Docking station 2 can also be connected to computer 3 directly using cable 28, as shown in Fig. 1.

Figure 2 shows a variant of the device for testing vision 1: a - right view, b - frontal view. Here, the body and handle of the device are formed by two covers 37, connected to each other using screws 36. Figure 2 also shows a slip ring 35.

Figure 3 shows a general view of another embodiment of device 1. In this embodiment, the body and handle are made in the form of a single monolithic part.

Figure 4 shows the housing 4 of device 1 in a horizontal section. Here, in addition, a contact ring 35 is shown, fixed on the outer edge of the viewing window 39, and test objects 38 located along the meridians 7 on the surface of the demonstration screen 6.

Ring 35 has an anatomical shape: its thickness decreases towards the nose and increases towards the temple, which ensures a tight fit to the patient’s face. The presented examples of implementation of the device 1 and the system shown in the drawings are given to explain the essence of the invention and do not limit other possible embodiments of the system and device 1. Thus, in particular, instead of a desktop computer 3, a smartphone or tablet can be included in the system, and the test objects can be located on the surface of the display screen 6 along other guides, the contact ring 35 of the viewing window 39 and the body 4 of the device 1 can have a different shape to improve ergonomics of use. For example, the contact ring 35 of the viewing window 39 may have the shape of an asymmetrical ellipse (egg-shaped), a polygon with rounded corners (triangle, including Reuleaux triangle, square, Pentagon, hexagon, heptagon). The shape of the slip ring 35 can be selected depending on the presence and/or absence of epicanthus, as well as the shape of the nose and cheekbones. This increases the reduction in impact on the vision testing procedure, since it is not possible to see the light object due to a mechanical obstacle in the form of the nose, epicanthus, eyebrow and zygomatic bone.

In the embodiments of the claimed system presented in the drawings, the modules for storing, processing and transmitting information of the device and docking station include a microcomputer, a memory unit and a unit for receiving and transmitting data over a wireless network. However, these examples do not limit other embodiments of these modules.

Carrying out the invention

At the moment, various ophthalmological devices are known from the state of the art, allowing for several types of testing, including using light test patterns. Many well-known devices are quite large in size and are stationary. Devices of this type are usually installed in medical institutions and are inaccessible to the average user.

The proposed vision testing system is small in size, easy to use and can be used by both medical workers and users without special education, which allows it to be used outside medical institutions - in the field, at home, in medical offices at enterprises, in mobile medical complexes and laboratories.

The small size and lightness of the diagnostic device included in the system make it possible to use it to test the vision of bedridden patients, and the ability to transmit test data via a wireless network allows the examination to be carried out remotely.

In addition, the anatomical features of the patients studied, the shape of their eyes, nose, cheekbone height, and the presence of epicanthus are taken into account. This affects the shape of the contact ring, which can be removable, have different shapes (asymmetrical ellipse, polygon with rounded corners) and be installed on the viewing window and/or the device body.

The system has a wide range of effective applications and can be used to diagnose pathologies of the visual analyzer and a number of neurological diseases that lead to changes in the width of the visual field and the acuity of color perception, such as multiple sclerosis. The compact diagnostic device included in the system allows testing using static, kinetic and blue-yellow perimetry methods, as in in accordance with standard programs, and according to programs compiled individually for a specific patient.

The claimed vision testing system includes a portable vision testing device, a docking station and a computer, the characteristics of which allow it to be installed with software for interacting with the device and the docking station. In some embodiments, the system may also include a server for storing test data.

A portable vision test device is a hollow, spherical-shaped body, on the inner surface of which a spherical display screen with an anti-reflective coating is mounted. Observation of the test patterns shown on the screen is carried out through a viewing window made in the housing, equipped with an adaptive contact ring of an anatomical shape. The opening of the viewing window is made with the possibility of installing a clamp with a corrective spectacle lens, which allows the device to be used in cases of sharply reduced visual acuity. The body of the device is mounted on an elongated handle equipped with a button to confirm the visibility of the demonstrated test patterns.

To form test patterns, point light test objects are used, located orderly and evenly across the entire surface of the screen. Such test objects, in particular, can be implemented by placing LEDs that support several color operating modes in holes on the surface of the screen.

In the preferred embodiment, one test object is central and is located opposite the viewing window, and the remaining light test objects are distributed with equal spacing along meridians equally spaced from each other. In this case, the uniform distribution of test objects over the screen surface is achieved by shifting the test object location points of even meridians relative to the test object location points of odd meridians.

In particular, 144 light test objects can be located in 10° increments along 16 meridians spaced by 22.5°, where the first test object of the odd meridian has an initial angular coordinate of 5°, and the initial angular coordinate of the first test object of the even meridian equal to 10°. Here the origin of coordinates coincides with the location of the central test object.

The inner surface of the screen also has a backlight that meets the requirements of the Goldmann standard, which ensures high accuracy in determining the boundaries of the field of view.

The diameters of the body, screen and viewing window are 2.25-2.4 L, respectively; 1.75-1.9 L and 0.85-1.1 L, where L is the horizontal size of the human eye socket. The part of the body on the viewing side is made spherical, which eliminates the limiting effect of protruding parts of the face, such as the nose and brow ridges.

With the development of optical neuropathy of various origins, the internal boundaries of the visual fields begin to narrow most early. In particular, with glaucoma, this is recorded as the appearance of a “nasal step,” that is, loss of the upper-inner quadrant of the visual field. Diagnosis of these changes using known methods is delayed, since it is impossible to see the light object due to a mechanical barrier in the form of the nose, eyebrow and cheekbone. The claimed vision testing system allows for examination of the peripheral areas of the retina and diagnosis of a number of serious diseases, such as glaucoma, in the early stages.

The spherical shape of the demonstration screen and a large number of test objects located, including on its periphery, provide the opportunity to receive a response to light stimulation from the most extreme, peripheral in location, light-sensitive elements of the retina, which allows expanding the boundaries of the studied visual field to 90 ° in each of the four quadrants of the visual field.

The anatomical shape of the contact ring of the viewing window ensures a tight fit of the device to the patient’s face and allows the eyelids to be fixed during testing, which eliminates errors caused by blinking. To achieve a better fit effect, the contact ring is made of elastic materials, the shape of which adapts to the shape of the patient's face. In order to be able to use the device effectively, the contact ring is removable and its shape is made taking into account the shape and size of the eye, the presence/absence of epicanthus, the height of the cheekbones and nose. In particular, the shape of the slip ring can be made in the form of an asymmetrical ellipse (ovoid), a polygon with rounded corners (triangle, including the Reuleaux triangle, square, Pentagon, hexagon, heptagon), as well as other complex geometric curvilinear shapes that follow the structure of the face patient, which can be specially made to order for a specific patient, taking into account the structural features of his face. Also, the size of the slip ring can vary, taking into account the face sizes of patients, for example, children and adolescents (from 0 to 36 months, from 36 months to 7 years, from 7 years to 14 years and from 14 years to 18 years).

The diagnostic accuracy is also increased by including a video camera in the design of the device, which records the movement of the patient’s pupil during the vision test.

To control the operation of the device and exchange data with other components of the system, at least a microcomputer, a memory unit, a battery and a data reception and transmission unit via a wireless network are also located inside its case. The patient confirmation button for the visibility of the demonstrated test patterns, located on the surface of the handle, is equipped with a means of producing an audible signal confirming the fact of pressing.

The handle of the device is designed to be installed in the connector provided for this purpose on the docking station. The device can be additionally equipped with a speaker, which allows voice instructions to be transmitted to the patient during the testing procedure.

No need to connect the device to the power supply makes it more mobile and safer.

The device's battery can be charged by installing the device on a docking station or by connecting it to a power source or standard electrical outlet. In the first case, charging can be carried out either from the docking station battery or through the power supply network to which it is connected. In the second case, the device is connected to a power source using a cable such as USB-C.

The docking station is a housing on the surface of which, in addition to the connector for installing the device, there is a panel controls with display and fingerprint scanner. In a preferred embodiment, a capacitive fingerprint scanner is used. Inside the docking station there is also a microcomputer, a memory unit, a battery, and a unit for receiving and transmitting data via a wireless network.

The docking station is designed to be connected to a power supply and is also equipped with one or more connectors for connecting data cables.

The docking station allows for the installation of an additional memory card for recording encrypted data. This can be a Micro SD T-Flash memory card or any other card suitable for this purpose.

The docking station is also equipped with a speaker that allows you, for example, to play voice instructions for testing or read information displayed on the control panel display, which makes it easier for users with vision problems to interact with the docking station.

The system also includes a computer. This can be a stationary personal computer of the user or his attending physician, a laptop, a smartphone, a tablet, as well as any other computer device on which special software can be installed and used to interact with the device and the docking station.

Data exchange between the computer, the device and the docking station can be carried out wirelessly or by direct connection using a cable.

User interaction with the device and docking station can be carried out not only through special software, but also using a chat bot. In this case, the characteristics The user’s computer must provide the ability to install a chatbot-supporting messenger, social network or working platform, such as Telegram, WeChat, WhatsApp, Facebook, VKontakte, Skype and the like.

Vision testing using the claimed system is carried out as follows.

Before the vision test begins, the patient undergoes an identification procedure.

Identification can be carried out by scanning a fingerprint using a scanner on the control panel of the docking station or by authorization through the system computer, for example, by specifying a login and password. Identification is necessary to record test data in the patient's personal electronic record.

Next, using a PC program, mobile application or menu on the docking station control panel, select a test program, which is transmitted wired or wirelessly to the vision tester.

The patient, holding the device by the handle, places it on his face, so that the viewing window is opposite the eye being examined. The second eye is kept closed during the procedure. The eye can be covered with a light bandage, a hand, or a special shield.

Next, at the beginning of any test, the patient is shown a central test object located opposite the viewing window. After fixing the gaze on the central test object, test patterns formed by light objects on the surface of the screen are demonstrated. The type of patterns, sequence, duration of their demonstration and the brightness level of the presented test objects are determined by the selected software testing. The patient confirms the visibility of the displayed stimuli by pressing the visibility confirmation button located on the handle of the device. The movement of the patient's pupil is recorded by a video camera installed inside the device.

Data obtained using a video camera, as well as visibility confirmation signals generated when the patient presses a button, are sent via a wireless data transmission receiving unit to the computer of the medical worker conducting the testing and displayed on the screen. If the patient conducts testing on his own, the data is sent to his device (computer, smartphone, etc.). The screen also displays the results of the analysis of data obtained during testing, which can be used to make a diagnosis and prescribe treatment.

All information about the types and results of tests is recorded in the patient’s electronic medical record and can subsequently be stored in the database of the medical institution where the patient is observed. In the case of home use of the device for self-monitoring of the course of the disease, testing information can also be stored in the memory module of the device and/or docking station, on the user's computer device or on a server. In this case, testing data can also be sent wirelessly to the computer of the attending physician, who, if necessary, can make new treatment recommendations or adjust the original ones. The possibility of remote monitoring of the patient’s condition eliminates the need for frequent face-to-face consultations. Interaction with the device and docking station can also be carried out using a chatbot. The chatbot can be used by both healthcare professionals and the patient. The chatbot can give instructions on how to use the device, initiate testing, report diagnostic results, remind you of the need for the next test, and perform other similar operations that simplify the user’s interaction with the device and the docking station.

All transmitted testing data can be encrypted using well-known encryption algorithms. Encrypted data is written to an additional memory card installed in the corresponding slot of the docking station.

Any type of communication/connection, such as Wi-Fi, and/or Bluetooth, and/or mobile cellular communications GSM, 3G, 4G, 5G, LTE, can be used as a wireless network for data exchange between the device, docking station and computer. and/or via ultra-low power data links forming complex wireless mesh networks such as ZigBee and/or LoRa and/or LoRaWAN and/or LPWAN and/or 6L0WPAN and/or Z-wave.

As follows from the description of possible implementations of the claimed invention, the proposed system for testing vision ensures the achievement of the stated technical result, which consists in the development of a mobile system for testing vision while simultaneously ensuring increased accuracy in identifying hidden pathologies of the eye and neurological diseases leading to degradation of visual perception, including , glaucoma and multiple sclerosis, taking into account anatomical facial structure features of patients; as well as increasing the security of data storage and transmission.

Increasing the accuracy of detecting hidden eye pathologies is achieved through the design of the eye examination device. Making the body and display screen of the device spherical, uniformly placing a large number of test objects on the entire surface of the screen, as well as the use of backlighting that meets perimetry standards, and the use of a video camera to track pupil movements during the study provide the ability to obtain complete and accurate information about the field of view the patient's eye being examined. Including information about the peripheral areas of the retina, which often makes it possible to diagnose diseases in the early stages of development.

Also, the use of an anatomically shaped contact ring for the viewing window ensures a tight fit of the device to the patient’s face and allows the eyelids to be fixed during testing, which eliminates errors caused by blinking. At the same time, to effectively use the device and increase the accuracy of the studies, the contact ring is removable and its shape is made taking into account the shape and size of the eye, the presence/absence of epicanthus, the height of the cheekbones and nose. Also, the size of the slip ring may vary to suit the facial size of patients, such as children and adolescents (0 to 36 months, 36 months to 7 years, 7 years to 14 years, and 14 years to 18 years).

The small dimensions of the device and docking station allow the system to be used in the field, thereby providing the ability to conduct high-precision diagnostics outside of medical institutions. Data transfer security is ensured by the use of encryption algorithms and the ability to record encrypted data on an additional memory card installed in the corresponding slot of the docking station. An additional factor that ensures the security of working with medical data is the possibility of fingerprint identification. Thus, all information about tests ever completed by the patient is available only to medical workers and the patient himself, which ensures a high degree of data confidentiality.

Taking into account the novelty of the set of essential features, the technical solution of the problem, the inventive step and the materiality of all general and particular features of the invention, proven in the section “State of the art” and “Disclosure of the invention”, the technical feasibility and industrial applicability proven in the section “Implementation and industrial implementation of the invention” invention, the solution of the set inventive problems and the confident achievement of the required technical result in the implementation and use of the invention, in our opinion, the claimed invention satisfies all the requirements for patentability for inventions.

The analysis also shows that all the general and specific features of the invention are essential, since each of them is necessary, and together they are not only sufficient to achieve the purpose of the invention, but also allow the invention to be implemented industrially.

Claims

CLAIM

1. A vision testing system, including a portable eye examination device, a docking station and a computer, where the eye examination device is characterized by the presence of a spherical screen in a spherical body with a viewing window, a pen with a patient response button, a power supply, a storage module, and processing and information transmission, including, inter alia, means of receiving and transmitting data over a wireless network and means of playing audio messages; the opening of the viewing window is made with the possibility of installing a retainer with a corrective lens in it and is equipped with an adaptive contact ring, selected depending on the anatomical shape of the patient’s face; the docking station is configured to connect to it one or more data cables the docking station is designed to connect to it one or more data cables and is characterized by the presence and is characterized by the presence of a control panel with a display and a fingerprint scanner, a socket for installation and charging a device for examining the eye, a power supply, a module for storing, processing and transmitting information, including, inter alia, reproduction means

27 audio messages and means of receiving and transmitting data over a wireless network; and configured to install an additional memory module that supports the data encryption function. The computer is designed to communicate wirelessly, and its characteristics allow you to install and use special software and/or an application that supports a chatbot to interact with the eye examination device and docking station.

2. The system according to claim 1, characterized in that the spherical screen is designed to display point light test objects, is equipped with backlighting that meets the Goldmann standard, and means for recording the movement of the pupil; and the handle is located at the bottom of the case and is designed to be connected to the power socket of the docking station.

3. The system according to claim 1, characterized in that the opening of the viewing window is made round, and the diameters of the spherical part of the body of the device for testing vision, the demonstration screen and the viewing window are equal to 2.25-2.4 L, respectively; 1.75-1.9 L and 0.85-1.1 L, where L is the horizontal size of the human eye socket.

4. The system according to claim 1, characterized in that the adaptive contact ring is removable.

5. The system according to claim 1, characterized in that the adaptive slip ring is made of elastic material.

6. The system according to claim 2, characterized in that point light test objects are placed over the entire surface area of the screen in a certain order.

7. The system according to claim 2, characterized in that one test object is located opposite the center of the viewing window, and the remaining test objects are distributed with equal spacing along the meridians, spaced at an equal distance from each other.

8. The system according to claim 6, characterized in that 144 light test objects are located in increments of 10° along 6 meridians, spaced by 22.5°, where the first test object of the odd meridian has an initial angular coordinate of 5°, the initial angular coordinate of the first test object of the even meridian is 10°, and the origin coincides with the location of the central test object.

9. The system according to claim 2, characterized in that LEDs placed in the screen holes with the ability to change the color of the glow are used as light test objects.

10. The system according to claim 9, characterized in that the diodes support operating modes in at least white, yellow, blue, red and green colors.

11. The system according to claim 1, characterized in that it additionally contains a video camera for recording the movement of the patient’s pupil.

12. The system according to claim 1, characterized in that the button for receiving the patient’s response is equipped with sound alerts.

13. The system according to claim 1, characterized in that the device for examining the eye is configured to connect a data cable.

14. The system according to claim 1, characterized in that the eye examination device is configured to connect a battery charging cable.

15. The system according to claim 1, characterized in that the docking station is portable or stationary.

16. The system according to claim 1, characterized in that any Micro SD card, including Micro SD TransFlash, Micro SDHC or Micro SDXC, can be used as a memory module for recording encrypted data.

17. The system according to claim 1, characterized in that a capacitive scanner is used as a fingerprint scanner.

18. The system according to claim 1, characterized in that the docking station is designed to charge the battery of the device installed in the socket, both from its own battery and from the power supply network to which it is connected.

19. The system according to claim 1, characterized in that the docking station is designed to connect a cable for charging the battery.

20. The system according to claim 1, characterized in that the computer is a desktop computer, laptop, tablet or smartphone.

21. The system according to claim 1, characterized in that the exchange of data between the eye examination device, the docking station and the computer is carried out using any type of communication/connection, such as Wi-Fi, and/or Bluetooth, and/or mobile cellular GSM, 3G, 4G, 5G, LTE, and/or via ultra-low power data links forming complex wireless mesh networks such as ZigBee and/or LoRa and/or LoRaWAN and/or LPWAN and /or 6L0WPAN, and/or Z-wave.

22. The system according to claim 1, characterized in that the characteristics of the computer allow it to install and use one or more messenger applications, a social network or a working platform that supports a chatbot, including Telegram, WeChat, WhatsApp, Facebook, VKontakte, Skype.

23. The system according to claim 1, characterized in that the adaptive slip ring can be made both in the form of a standard circle, oval, and in the form of an asymmetric ellipse, a polygon with rounded corners, for example, a triangle, including a Reuleaux triangle, a square, Pentagon, hexagon, heptagon, and also have the shape of a complex geometric curvilinear figure that follows the structure of the face of a particular patient, and the size of the contact ring is selected in accordance with the patient’s age.

24. A method for testing vision using a system according to any one of claims 1-23, which consists in the fact that the user is identified by scanning a fingerprint on a docking station scanner or by authorizing using a computer, selects and launches the required testing program from the menu, displayed on the display of the docking station control panel or on the computer screen, in accordance with instructions broadcast through the speaker of the eye examination device or docking station, places the device with the viewing window opposite the eye being examined, keeping the other eye closed, and carries out the commands required for the examination testing, upon completion of testing, the computer analyzes the received data, the results of which notify the user by displaying them on its own screen or transmitting a voice message using the device’s speaker or docking station.

25. The method according to claim 24, characterized in that the testing data is sent to the server.

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