SYSTEM, METHOD, AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIA RELATED TO CORRECTION OF VISION DEFECTS USING A VISUAL DISPLAY

• US 20160270648A1
• Filed: 03/17/2016
• Published: 09/22/2016
• Est. Priority Date: 03/17/2015
• Status: Active Grant

• Current Assignee: Raytrx, LLC
• Original Assignee: Ocutrx Vision Technologies LLC
• Inventors: Freeman, Richard C., Boss, Chad, Boss, Jordan, Cormier, Jay E., Watola, David A., Freeman, Michael H., Freeman, Mitchael C.
• Granted Patent: US 9,955,862 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61B 3/0025 characterised by electronic signal processing, e.g. eye models
• CPC Class Codes: A61B 3/024 for determining the visual field, e.g. perimeter types
• CPC Class Codes: A61B 3/032 Devices for presenting test symbols or characters, e.g. test chart projectors A61B3/036 takes precedence
• CPC Class Codes: A61B 3/12 for looking at the eye fundus, e.g. ophthalmoscopes A61B3/13 takes precedence
• CPC Class Codes: A61F 9/08 Devices or methods enabling eye-patients to replace direct visual perception by another kind of perception
• CPC Class Codes: G16H 10/60 for patient-specific data, e.g. for electronic patient records
• CPC Class Codes: G16H 30/20 for handling medical images, e.g. DICOM, HL7 or PACS
• CPC Class Codes: G16H 30/40 for processing medical images, e.g. editing
• CPC Class Codes: G16H 50/20 for computer-aided diagnosis, e.g. based on medical expert systems
• CPC Class Codes: G16Z 99/00 Subject matter not provided for in other main groups of this subclass

Abstract

Techniques related to vision correction are disclosed. The techniques involve establishing a visual model associated with a patient. The visual model includes data related to a quality of the patient'"'"'s vision. A boundary is established as a function of the data associated with the visual model. The boundary is indicative of an area to be corrected within the patient'"'"'s vision. A retinal map is established as a function of the boundary. An image from a camera associated with the patient is captured and corrections are applied to the image based on the retinal map to generate a corrected image. The corrected image is presented to the eye of the patient.

Claims

1. A system, comprising:

a database;

a model controller coupled to the database and being configured to establish a visual model associated with a patient and to store the visual model in the database, the visual model including data related to a quality of the patient'"'"'s vision, the model controller being further configured to establish a boundary as a function of data associated with the visual model, the boundary being indicative of an area to be corrected within the patient'"'"'s vision, the model controller being further configured to establish a retinal map as a function of the boundary and to store the retinal map in the database;

a display controller configured to receive and to store the retinal map and to receive an image from a camera associated with the patient and to apply corrections to the image based on the retinal map and responsively generate a corrected image; and

,

a display unit coupled to the display controller and being configured to receive the corrected image to present the corrected image to the eye of the patient.

2. A system, as set forth in claim 1, wherein the visual model is established using at least one of (1) a field of vision ophthalmological instrument, (2) a portable mobile field of vision test kit, and (3) a computer-based system.

3. A system, as set forth in claim 1, wherein the visual model is represented by a plurality of cells arranged in one of a grid, contour, or polygon each cell having a value associated with the quality of the patient'"'"'s vision.

4. A system, as set forth in claim 3, wherein the boundary is established as a function of the values associated with the cells in the grid.

5. A system, as set forth in claim 4, wherein the values are compared with a threshold to establish the boundary.

6. A system, as set forth in claim 5, wherein the threshold is adjustable, the model controller being configured to dynamically adjust the threshold to establish the boundary.

7. A system, as set forth in claim 1, wherein the model controller, in establishing the boundary, is configured to:

establish an initial boundary as a function of the model, and

perform one or more morphological transformations on the initial boundary to establish a final boundary.

8. A system, as set forth in claim 1, wherein the model controller, in establishing the boundary, is configured to establish a first boundary and a second boundary.

9. A system, as set forth in claim 8, wherein the model controller is configured to evaluate the first and second boundary and to responsively establish a final boundary.

10. A system, as set forth in claim 9, wherein the final boundary incorporates at least a portion of each of the first and second boundary.

11. A system, as set forth in claim 9, wherein one of the first and second boundaries is eliminated if the one of the first and second boundary does not meet a set of predefined criteria.

12. A system, as set forth in claim 1, wherein the boundary is established as a function of one or more predesigned shapes and the visual model.

13. A system, as set forth in claim 1, wherein the retinal map includes a series of data points overlaid the visual model, each data point having a set of coordinate transformation values, the display controller being further configured to generate the corrected image as a function of the series of data points.

14. A system, as set forth in claim 13, wherein the display controller, in generating the corrected image, shifts visual information within the corrected image in a first area inside the boundary to a second area outside of the boundary as a function of the series of data points.

15. A system, as set forth in claim 13, wherein the visual information is linearly shifted from a central point.

16. A system, as set forth in claim 15, wherein the visual information from the central point to an edge of the image is proportionally compressed within an edge of the boundary to the edge of the image.

17. A system, as set forth in claim 16, wherein the visual information from the central point to the edge of the boundary is disproportionally shifted within the edge of the boundary to the edge of the image.

18. A computer-based method, including the steps of:

establishing, by a model controller, a visual model associated with a patient and storing the visual model in the database, the visual model including data related to a quality of the patient'"'"'s vision;

establishing, by the model controller, a boundary as a function of data associated with the visual model, the boundary being indicative of an area to be corrected within the patient'"'"'s vision;

establishing, by the model controller a retinal map as a function of the boundary and storing the retinal map in the database;

receiving, at a display controller, an image from a camera associated with the patient, applying corrections to the image based on the retinal map, and responsively generating a corrected image; and

,

receiving, at a display unit, the corrected image and presenting the corrected image to the eye of the patient.

19. A method, as set forth in claim 18, wherein the visual model is established using at least one of (1) a field of vision ophthalmological instrument, (2) a portable mobile field of vision test kit, and (3) a computer-based system.

20. A method, as set forth in claim 18, wherein the visual model is represented by a plurality of cells arranged in one of a grid contour, or polygon, each cell having a value associated with the quality of the patient'"'"'s vision.

21. A method, as set forth in claim 20, wherein the boundary is established as a function of the values associated with the cells in the grid.

22. A method, as set forth in claim 21, wherein the values are compared with a threshold to establish the boundary.

23. A method, as set forth in claim 22, wherein the threshold is adjustable, the model controller being configured to dynamically adjust the threshold to establish the boundary.

24. A method, as set forth in claim 18, wherein the step of establishing the boundary includes the steps of:

establishing an initial boundary as a function of the model, and

performing one or more morphological transformations on the initial boundary to establish a final boundary.

25. A method, as set forth in claim 18, wherein the step of establishing the boundary includes the step of establishing a first boundary and a second boundary.

26. A method, as set forth in claim 25, including the steps of evaluating the first and second boundary and responsively establishing a final boundary.

27. A method, as set forth in claim 26, wherein the final boundary incorporates at least a portion of each of the first and second boundary.

28. A method, as set forth in claim 27, wherein one of the first and second boundaries is eliminated if the one of the first and second boundary does not meet a set of predefined criteria.

29. A method, as set forth in claim 18, wherein the boundary is established as a function of one or more predesigned shapes and the visual model.

30. A method, as set forth in claim 18, wherein the retinal map includes a series of data points overlaid the visual model, each data point having a set of coordinate transformation values, the method including the step of generating the corrected image as a function of the series of data points.

31. A method, as set forth in claim 30, wherein the step of generating the corrected image includes the step of shifting visual information within the corrected image in a first area inside the boundary to a second area outside of the boundary as a function of the series of data points.

32. A method, as set forth in claim 30, wherein the visual information is linearly shifted from a central point.

33. A method, as set forth in claim 32, wherein the visual information from the central point to an edge of the image is proportionally compressed within an edge of the boundary to the edge of the image.

34. A method, as set forth in claim 33, wherein the visual information from the central point to the edge of the boundary is disproportionally shifted within the edge of the boundary to the edge of the image.

35. A method, as set forth in claim 18, wherein the retinal map is stored in the database as a prescription file to be incorporated into corrective devices.

36. One or more non-transitory computer-readable storage media, having computer-executable instructions embodied thereon, wherein when executed by at least one processor, the computer-executable instructions cause the processor to:

establish, by a model controller, a visual model associated with a patient and store the visual model in the database, the visual model including data related to a quality of the patient'"'"'s vision;

establish, by the model controller, a boundary as a function of data associated with the visual model, the boundary being indicative of an area to be corrected within the patient'"'"'s vision;

establish, by the model controller, a retinal map as a function of the boundary and storing the retinal map in the database;

receive, at a display controller, an image from a camera associated with the patient, apply corrections to the image based on the retinal map, and responsively generate a corrected image; and

,

receive, at a display unit, the corrected image and present the corrected image to the eye of the patient.