Contact lens and eyewear frame design using physical landmarks placed on the eye

Patent metadata

Field	Value
Publication number	US-11604368-B2
Application number	US-202117223958-A
Country	US
Kind code	B2
Filing date	Apr 6, 2021
Priority date	Apr 6, 2021
Publication date	Mar 14, 2023
Grant date	Mar 14, 2023

Abstract

A method comprises: disposing a physical landmark upon an eye of a user; capturing at least one image of the eye of the user with an image sensor while the eye is illuminated, wherein the image includes an image of the physical landmark and at least one other point on the surface of the eye outside of the cornea; processing the at least one image to obtain at least one metric of the eye of the user; and determining, based on the at least one metric, at least one parameter of a daily use contact lens to be worn on the eye of the user.

First claim

What is claimed is:

1. A method comprising:
disposing a physical landmark upon an eye of a user;
capturing at least one image of the eye of the user with an image sensor while the eye is illuminated, wherein the image includes an image of the physical landmark and at least one other point on the surface of the eye outside of the cornea;
processing the at least one image to obtain at least one metric of the eye of the user;
determining, based on the at least one metric, at least one parameter of a daily use contact lens to be worn on the eye of the user;
disposing measurement display eyewear on the face of the user prior to capturing the image, the measurement display eyewear comprising a display, the light source, and the image sensor; and
capturing the at least one image of the eye of the user and the physical landmark with the display eyewear while the eye is illuminated;
wherein the obtained at least one metric further comprises at least one of:
a vertex distance between an apex of a cornea of the eye and the display,
a pupillary distance between the center of a pupil of an eye and the midline of the face between the eyes, or
a vertical position of the center of the pupil relative to the center of the display.

2. The method of claim 1 , wherein:
the daily use contact lens is to be worn by the user to view daily use display eyewear.

3. The method of claim 1 , wherein:
the physical landmark is a measurement contact lens.

4. The method of claim 3 , wherein:
the measurement contact lens comprises an orientation mark; and
capturing at least one image of the eye of the user and the physical landmark with an image sensor while the eye is illuminated comprises capturing at least one image of the orientation mark.

5. The method of claim 1 , wherein:
the physical landmark comprises a liquid film.

6. The method of claim 5 , wherein:
the liquid film reflects light in the spectrum of the image sensor.

7. The method of claim 1 , further comprising:
disposing a measurement contact lens upon the eye of the user prior to capturing the at least one image, wherein the measurement contact lens conforms to the shape of the eye of the user and at least one point on the measurement contact lens is detectable by the image sensor.

8. A non-transitory machine-readable storage medium encoded with instructions executable by one or more hardware processors of a computing component, the machine-readable storage medium comprising instructions to cause the one or more hardware processors to perform operations comprising:
receiving at least one image of an eye of a user captured while a physical landmark is on the eye and the eye is illuminated, wherein the image includes an image of the physical landmark and at least one other point on the surface of the eye outside of the cornea;
processing the at least one image to obtain at least one metric of the eye of the user; and
determining, based on the at least one metric, at least one parameter of a daily use contact lens to be worn on the eye of the user;
wherein the at least one image is captured by measurement display eyewear worn on the face of the user; and
wherein the obtained at least one metric further comprises at least one of:
a vertex distance between an apex of a cornea of the eye and a display of the measurement display eyewear;
a pupillary distance between the center of a pupil of an eye and the midline of the face between the eyes; or
a vertical position of the center of the pupil relative to the center of the display.

9. The non-transitory machine-readable storage medium of claim 8 , wherein:
the daily use contact lens is to be worn by the user to view daily use display eyewear.

10. The non-transitory machine-readable storage medium of claim 8 , wherein:
the physical landmark is a measurement contact lens.

11. The non-transitory machine-readable storage medium of claim 10 , wherein:
the measurement contact lens comprises an orientation mark; and
the at least one image includes an image of the orientation mark.

12. The non-transitory machine-readable storage medium of claim 10 , wherein:
the measurement contact lens conforms to the surface of the eye; and
at least one point on the measurement contact lens is detectable by an image sensor that generated the image.

13. The non-transitory machine-readable storage medium of claim 8 , wherein:
the physical landmark comprises a liquid film.

14. The non-transitory machine-readable storage medium of claim 13 , wherein:
the liquid film reflects light in the spectrum of the image sensor that generated the image.

15. A system, comprising:
a hardware processor; and
a non-transitory machine-readable storage medium encoded with instructions executable by the hardware processor to perform operations comprising:
receiving at least one image of an eye of a user captured while a physical landmark is on the eye and the eye is illuminated, wherein the image includes an image of the physical landmark and at least one other point on the surface of the eye outside of the cornea;
processing the at least one image to obtain at least one metric of the eye of the user; and
determining, based on the at least one metric, at least one parameter of a daily use contact lens to be worn on the eye of the user;
wherein the at least one image is captured by measurement display eyewear worn on the face of the user; and
wherein the obtained at least one metric further comprises at least one of:
a vertex distance between an apex of a cornea of the eye and a display of the measurement display eyewear;
a pupillary distance between the center of a pupil of an eye and the midline of the face between the eyes; or
a vertical position of the center of the pupil relative to the center of the display.

16. The system of claim 15 , wherein:
the daily use contact lens is to be worn by the user to view daily use display eyewear.

17. The system of claim 15 , wherein:
the physical landmark is a measurement contact lens.

18. The system of claim 17 , wherein:
the measurement contact lens comprises an orientation mark; and
the at least one image includes an image of the orientation mark.

19. The system of claim 17 , wherein:
the measurement contact lens conforms to the surface of the eye; and
at least one point on the measurement contact lens is detectable by an image sensor that generated the image.

20. The system of claim 15 , wherein:
the physical landmark comprises a liquid film.

21. The system of claim 20 , wherein:
the liquid film reflects light in the spectrum of the image sensor that generated the image.

Assignees

• Innovega Inc

Inventors

• Legerton Jerome
• Marsh Jay

Classifications

• A61B3/0025

  characterised by electronic signal processing, e.g. eye models · CPC title

• A61B3/111 Primary

  for measuring interpupillary distance · CPC title

• A61B3/107

  for determining the shape or measuring the curvature of the cornea · CPC title

• G02C13/003 Primary

  Measuring during assembly or fitting of spectacles · CPC title

• A61B3/14

  Arrangements specially adapted for eye photography · CPC title