# US 2025/0143572 A1 · System and method of illumination of structures within an eye

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- Number: US 2025/0143572 A1
- Document ID: US20250143572A1
- Status: Published application
- Kind: A1
- Application number: 18/738,106
- Filed: 2024-06-10
- Published: 2025-05-08
- Earliest claimed: 2010-10-15
- Assignees: Lensar, Inc.
- Applicants: Lensar, Inc.
- Inventors: Gary P. Gray; Rudolph W. Frey; Richard TY Olmstead; Steven E. Bott; James Strobel
- Web page: https://patentgrep.com/patent/US20250143572A1

## CPC

- A61B 3/14: Arrangements specially adapted for eye photography
- A61B 3/0025: {characterised by electronic signal processing, e.g. eye models}
- A61B 3/08: for testing binocular or stereoscopic vision, e.g. strabismus
- A61B 3/1025: {for confocal scanning}
- A61B 3/107: for determining the shape or measuring the curvature of the cornea
- A61B 3/1173: {for examining the eye lens}
- A61B 2560/0223: of calibration, e.g. protocols for calibrating sensors
- A61B 2576/02: specially adapted for a particular organ or body part
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)

## Abstract

There is provided a system, apparatus and methods for enhancing the illumination of structures of the eye using predetermined scan patterns of an illuminating light beam. The systems, apparatus and methods further provide for obtaining enhanced single images of multiple structures of the eye.

## Claims

### Claim at position 1

1-9. (canceled)

### Claim 10

A method for enhancing an illumination of structures of an eye and imaging the structures, the method comprising:
a) selecting a first predetermined illumination scan pattern, having a predetermined rate and area;
b) selecting a second predetermined illumination scan pattern, having a predetermined rate and area; wherein either the second scan area is different from the first scan area, or the second scan area and the second scan rate are different from the first scan area and the first scan rate;
c) directing a first illuminating beam of light in the first scan pattern toward a first structure of the eye whereby a first illuminated image is created;
d) directing a second illuminating beam of light in the second scan pattern toward a second structure of the eye, wherein the second structure is different from the first, whereby a second illumination image is created;
e) digitally capturing the first illumination image on a first predetermined portion of an image capture device;
f) digitally capturing the second illumination image on a second predetermined portion of the same image capture device, wherein the second portion is different than the first portion;
g) whereby a single composite image of the illuminated components is created on the image capture device by combining the digitally captured first and second illumination images.

### Claim 11 (depends on 10)

The method of claim 10, wherein at least one of the predetermined illumination scan patterns is optimized for the component to be scanned.

### Claim 12 (depends on 10)

The method of claim 10, wherein the first structure of the eye is the cornea of the eye.

### Claim 13

The method of claims, 10, wherein the second structure of the eye is the natural crystalline lens of the eye.

### Claim 14 (depends on 12)

The method of claim 12, wherein the second structure is the natural crystalline lens of the eye.

### Claim 15

A system for providing enhanced illumination of structures of the eye and imaging the structures, the system comprising:
a) an illumination light source for providing an illumination light beam;
b) a control system, associated with the illumination light source; the control system configured to control the illumination light source so that the following patterns are generated:
i) a first predetermined illumination light pattern, having a predetermined rate and area;
ii) a second predetermined illumination light pattern, having a predetermined rate and area; wherein either the second scan area is different from the first scan area, or the second scan area and the second scan rate are different from the first scan area and the first scan rate; and the system further comprising:
c) an image capture device comprising:
i) a first means for digitally capturing a first image of a first area of the eye generated by the first illuminating light beam scan pattern; and
ii) a second means for digitally capturing a second image of second area of the eye, wherein the second area is different from the first area, generated by the second illuminating light beam scan pattern; and,
iii) wherein the first means for digitally capturing the first image and the second means for capturing the second image are different portions of the same image capture device; and
d.) wherein the system is configured to create a single composite image of the illuminated components on the image capture device by combining the digitally captured first and second images.

### Claim 16 (depends on 15)

The system of claim 15, wherein the illumination light beam is an illumination laser beam.