DETERMINING VISION RELATED PHYSICAL CONDITIONS FROM CROSS-PARAMETER VISION TESTS

• US 20170360293A1
• Filed: 11/26/2015
• Published: 12/21/2017
• Est. Priority Date: 11/26/2014
• Status: Active Grant

• Current Assignee: Eyekon E.R.D. Ltd. (InnoVision Labs, Inc.)
• Original Assignee: Eyekon E.R.D. Ltd. (InnoVision Labs, Inc.)
• Inventors: NOVIK, Shai
• Granted Patent: US 10,638,925 B2
• Time in Patent Office: Days
• CPC Class Codes: A61B 3/022 for testing contrast sensitivity
• CPC Class Codes: A61B 3/036 for testing astigmatism
• CPC Class Codes: A61B 3/06 for testing light sensitivity, e.g. adaptation; for testing colour vision
• CPC Class Codes: A61B 5/168 Evaluating attention deficit, hyperactivity
• CPC Class Codes: G09B 21/008 using visual presentation of the information for the partially sighted

Abstract

A method and system for determining visual related physical conditions of a user of a display device, determined from the user'"'"'s responses to a selection of visual-tasks. A dataset is provided for correlating the user'"'"'s responses with the corresponding scores, so that by measuring the degree of correlation between the user'"'"'s scores and a predetermined combination of the corresponding scores, the user'"'"'s visual physical condition can be determined. A system is also provided, including a user device as well as a remote server for providing visual acuity and related testing to detect certain vision deficiencies and visual related physical conditions. In addition, a user device application is provided.

Claims

1. A method for presenting images to a user, for determining at least one vision related physical condition, the method comprising processor implemented steps of:

displaying two or more visual-tasks to a user, wherein at least one of the visual-tasks is configured for complex contrast sensitivity (CCS) examination;

measuring responses of the user to the displayed visual-tasks;

associating the user'"'"'s responses with a dataset of expected results, respective to the displayed visual-tasks; and

retrieving measurements of least one vision related physical condition, corresponding to a predetermined combination of the degree of correlation between the user'"'"'s responses and the associated expected results.

2. The method of claim 1, further comprises selecting at least one visual-task, which comprises at least one feature of the group consisting of:

contrast sensitivity (CS) target pattern;

backward masking with any of;

CS target pattern, the CS central target pattern with flanking patterns, tumbling target symbol, and tumbling central target symbol between plurality of flanking symbols;

CCS examination; and

any combination thereof.

3. The method of claim 2, wherein the visual task of CCS examination comprises at least one of:

CS central target pattern with flanking patterns having predetermined spacing distance there-between,

tumbling target symbol with flanking patterns having predetermined spacing distance there-between, and

tumbling central target symbol between plurality of flanking symbols having predetermined spacing distance there-between.

4. The method of claim 1, wherein at least one of the following holds true:

the physical condition is at least of the group consisting of;

Astigmatism, Presbyopia, Amblyopia, Diabetic Retinopathy, Glaucoma, Age-Related Macular Degeneration (AMD), Major Depression, Dyslexia, attention deficit disorder (ADD), attention deficit hyperactivity disorder (ADHD);

the visual related condition of the user is determined with and/or without optical correction of the user'"'"'s vision;

the method further comprises reporting the retrieved measurements of the at least one visual related physical condition;

the displaying comprises repetitions for each of the displayed visual-tasks;

the method further comprising providing to the user visual and/or audio instructions in regards to a required response;

the method further comprising providing to the user visual and/or audio feedback in regards to the received responses;

the displaying is configured for one of the user'"'"'s eyes or for both;

the at least two visual-tasks comprise at least one of;

dynamic-images, static-images, and any combination thereof; and

the measuring comprises classifying the user'"'"'s response as being correct vs. incorrect, or classifying the user'"'"'s response for its'"'"' level of correctness.

5. The method of claim 1, wherein the at least two visual-tasks are at least two CS target pattern, having at least one different character selected from the group consisting of:

size of the target pattern, orientation of the target pattern, color of the target pattern, exposure duration, exposure spatial frequency, and exposure spatial phase.

6. The method of claim 1, wherein the at least two visual-tasks are at least two CS central target pattern, having at least one different character selected from the group consisting of:

the predetermined spacing, size of the target pattern, orientation of the target pattern, color of the target pattern, exposure duration, exposure spatial frequency, and exposure spatial phase.

7. The method of claim 1, wherein the at least two visual-tasks are at least two tumbling target symbol, having at least one different character selected from the group consisting of:

size of the target symbol, orientation of the target symbol, color of the target symbol, exposure duration, exposure spatial frequency, and exposure spatial phase.

8. The method of claim 1, wherein the at least two visual-tasks are at least two tumbling central target symbol with plurality of flanking symbols, having at least one different character selected from the group consisting of:

size of the flanking symbols, orientation of the target symbol, orientation of the flanking symbols, color of the target symbol, color of the flanking symbols, exposure duration, exposure spatial frequency, exposure spatial phase, the spacing distance between the flanking symbol and the target symbol, and the spacing distance between the flanking symbols there-between.

11. The method of claim 2, wherein the spacing distance between the tumbling central target symbol and the flanking symbols is between 0.01% and 150% of the symbol size.

13. The method of claim 1, wherein the dataset of the expected results comprises responses of users with normal vision and/or responses of users which are diagnosed for having at least one vision related physical condition.

16. The method of claim 1, wherein the measuring comprises at least one of:

collecting the user'"'"'s response via a tactile and/or touch input device;

recognizing voice of the user;

monitoring and observing the user for at least one of;

gesture, eye-movements, blinking, and brain waves.

20. The method of claim 1, wherein the step of retrieving measurements of at least one vision related physical condition, is further responsive to a predetermined threshold for the degree of correlation.

9-10. -10. (canceled)

12. (canceled)

14-15. -15. (canceled)

17-19. -19. (canceled)

21. A device configured to determine at least one vision related physical condition of a user, the device comprising:

at least one display-device, configured to display at least two visual-tasks to the user, wherein at least one of the visual-tasks is configured to examine complex contrast sensitivity (CCS);

at least one input-device, configured to collect and interpret, user'"'"'s response/s to the displayed visual-tasks; and

at least one processor configured to;

associate the user'"'"'s responses with a dataset of expected results, respective to the displayed the visual-tasks; and

retrieve measurements of least one vision related physical condition, corresponding to a predetermined combination of the degree of correlation between the user'"'"'s responses and the associated expected results.

22. The device of claim 21, wherein at least one of the visual-tasks comprises at least one feature from the group consisting of:

contrast sensitivity CS target pattern;

backward masking with any of;

CS target pattern, CS central target pattern with flanking patterns, the tumbling target symbol, and the tumbling central target symbol between plurality of flanking symbols;

CCS examination; and

any combination thereof.

23. The device of claim 21, wherein the visual task of CCS examination comprises at least one of:

CS central target pattern with flanking patterns having predetermined spacing distance there-between,

tumbling target symbol with flanking patterns having predetermined spacing distance there-between, and

tumbling central target symbol between plurality of flanking symbols having predetermined spacing distance there-between.

24. The device of claim 21, wherein at least one of the following holds true:

the physical condition is at least one of the group consisting of;

Astigmatism, Presbyopia, Amblyopia, Diabetic Retinopathy, Glaucoma, Age-Related Macular Degeneration (AMD), Major Depression, Dyslexia, attention deficit disorder (ADD), attention deficit hyperactivity disorder (ADHD);

the display-device and the processor are further arranged to present a report of the measurements of the visual related condition;

the display-device, is configured to provide the user with visual-instructions in regards to a required responses and/or visual-feedback in regards to the received responses;

the device further comprising an audio-device, configured to provide the user with audio-instructions in regards to a required response and/or audio-feedback in regards to the collected response;

the display-device is configured for displaying for one of the user'"'"'s eyes or for both.

26. The device of claim 21, wherein the input-device is configured to perform at least one of:

collect tactile- and/or touch-input of the user;

recognize voice responses of the user;

monitor and observe the user for at least one of;

gesture, eye-movements, blinks and brain waves.

29. The device of claim 21, wherein the visual-tasks are prepared and stored by a remote server and sent to display-device via a network.

30. The device of claim 21, wherein the user'"'"'s responses and/or assignment is stored in the dataset in a remote server via a network.

25. (canceled)

27-28. -28. (canceled)

31. (canceled)

32. A non-transitory computer readable medium (CRM) comprising executable code instructions, which instructions when executed by a data processor cause the data processor to perform a method for presenting images to a user, for determining at least one vision related physical condition, the method comprising steps of:

displaying two or more visual-tasks to a user, wherein at least one of the visual-tasks is complex contrast sensitivity (CCS) examination;

measuring responses of the user to the displayed visual-tasks;

associating the user'"'"'s responses with a dataset of expected results, respective to the displayed the visual-tasks; and

retrieving measurements of least one vision related physical condition, corresponding to a predetermined combination of the degree of correlation between the user'"'"'s responses and the associated expected results.