IP Library Granted Patent US 12,575,889
Granted Patent B2
US 12,575,889 · App. 18/453,143 · Granted Mar 17, 2026

Systems and methods for intraocular lens selection

Inventors: Zsolt Bor (San Clemente, CA); Imre Hegedus (Aliso Viejo, CA)
Assignee: ALCON INC.
A61B34/10G06T7/0012G06T7/73A61B2034/104A61B2034/105A61B2034/107A61B2034/108G06T2207/20081G06T2207/30041
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Quick Facts
Patent No.
US 12,575,889
App. No.
18/453,143
Granted
Mar 17, 2026
Kind
B2
Abstract

Systems and methods for intraocular lens selection include receiving, by one or more computing devices implementing a prediction engine, pre-operative multi-dimensional images of an eye; extracting, by the prediction engine, pre-operative measurements of the eye based on the pre-operative images; estimating, by the prediction engine using a prediction model based on a machine learning strategy, a post-operative position of an intraocular lens based on the extracted pre-operative measurements; selecting a power of the intraocular lens based on the estimated post-operative position of the intraocular lens; and selecting the intraocular lens based on the selected power. In some embodiments, the systems and methods further include receiving post-operative multi-dimensional images of the eye after implantation of the selected intraocular lens, extracting post-operative measurements of the eye, and updating the prediction model based on the pre-operative measurements and the post-operative measurements.

Claims (58)

1 . A method comprising:

receiving, by one or more computing devices implementing a prediction engine, one or more pre-operative multi-dimensional images of an eye;

extracting, by the prediction engine, one or more pre-operative measurements of the eye based on the one or more pre-operative images of the eye, the pre-operative measurements of the eye comprising an estimated position of a lens equator determined as an equator line between each of two intersection points of an anterior lens radius and a posterior lens radius, and an angle to angle width of an anterior chamber of the eye;

estimating, by the prediction engine using a first prediction model based on a machine learning strategy, a post-operative position of an intraocular lens based on the one or more extracted pre-operative measurements of the eye;

selecting a power of the intraocular lens based on at least the estimated post-operative position of the intraocular lens; and

selecting the intraocular lens based on at least the selected power.

2 . The method of claim 1 , further comprising:

receiving one or more post-operative multi-dimensional images of the eye after implantation of the selected intraocular lens;

extracting one or more post-operative measurements of the eye; and

updating the first prediction model based on the one or more pre-operative measurements and the one or more post-operative measurements.

3 . The method of claim 1 , wherein the first prediction model comprises a neural network.

4 . The method of claim 1 , wherein the post-operative position of the intraocular lens is an anterior corneal depth (ACD) of the intraocular lens or a position of an equator of the intraocular lens.

5 . The method of claim 1 , wherein selecting the intraocular lens is further based on one or more of the estimated post-operative position of the intraocular lens or a diameter of a pre-operative lens.

6 . The method of claim 1 , wherein the one or more pre-operative measurements include one or more of a group consisting of:

a depth of a pupillary plane;

an angle between a pupillary axis of the eye and a line of sight axis of the eye when vision of the eye is fixated on a fixation point;

a diameter of a pre-operative lens of the eye;

a pre-operative anterior chamber depth of the eye; and

a refractive power of a cornea of the eye.

7 . The method of claim 1 , wherein selecting the power comprises recommending, by the prediction engine using a second prediction model, a recommended power for the intraocular lens based on at least the estimated post-operative position.

8 . The method of claim 7 , further comprising updating the second prediction model based on the recommended power and the selected power.

9 . The method of claim 1 , further comprising estimating, by the prediction engine using a second prediction model, a post-operative manifest refraction spherical equivalent (MRSE) based on at least the estimated post-operative position and the selected power.

10 . The method of claim 9 , further comprising:

measuring an actual post-operative MRSE; and

updating the second prediction model based on the estimated post-operative MRSE and the actual post-operative MRSE.

11 . The method of claim 1 , wherein the one or more pre-operative multi-dimensional images are each received from a diagnostic device selected from a group consisting of an optical coherence tomography (OCT) device, a rotating Scheimpflug camera, and a magnetic resonance imaging (MRI) device.

12 . The method of claim 1 , further comprising planning one or more procedures for implantation of the intraocular lens.

13 . The method of claim 1 , further comprising displaying one of the one or more pre-operative multi-dimensional images annotated with one of the one or more extracted pre-operative measurements.

14 . A prediction engine comprising:

one or more processors;

wherein the prediction engine is configured to:

receive one or more pre-operative multi-dimensional images of an eye obtained by a diagnostic device;

extract one or more pre-operative measurements of the eye based on the one or more pre-operative images of the eye, the pre-operative measurements of the eye comprising an estimated position of a lens equator determined as an equator line between each of two intersection points of an anterior lens radius and a posterior lens radius, and an angle to angle width of an anterior chamber of the eye;

estimate, using a first prediction model based on a machine learning strategy, a post-operative position of an intraocular lens based on the one or more extracted pre-operative measurements of the eye;

recommend a power of the intraocular lens based on at least the estimated post-operative position of the intraocular lens; and

provide the recommended power to a user to facilitate selection of the intraocular lens for implantation.

15 . The prediction engine of claim 14 , wherein the prediction engine is further configured to:

receive one or more post-operative multi-dimensional images of the eye after implantation of the selected intraocular lens;

extract one or more post-operative measurements of the eye; and

update the first prediction model based on the one or more pre-operative measurements and the one or more post-operative measurements.

16 . The prediction engine of claim 14 , wherein the post-operative position of the intraocular lens is an anterior corneal depth (ACD) of the intraocular lens or a position of an equator of the intraocular lens.

17 . The prediction engine of claim 14 , wherein the one or more pre-operative measurements include one or more of a group consisting of:

a depth of a pupillary plane;

an angle between a pupillary axis of the eye and a line of sight axis of the eye when vision of the eye is fixated on a fixation point;

a diameter of a pre-operative lens of the eye;

a pre-operative anterior chamber depth of the eye; and

a refractive power of a cornea of the eye.

18 . The prediction engine of claim 14 , further comprising estimating, by the prediction engine using a second prediction model, a post-operative manifest refraction spherical equivalent (MRSE) based on at least the estimated post-operative position and a selected power of the intraocular lens.

19 . A non-transitory machine-readable medium comprising a plurality of machine-readable instructions which when executed by one or more processors are adapted to cause the one or more processors to perform a method comprising:

receiving, by one or more computing devices implementing a prediction engine, one or more pre-operative multi-dimensional images of an eye;

extracting, by the prediction engine, one or more pre-operative measurements of the eye based on the one or more pre-operative images of the eye, the pre-operative measurements of the eye comprising an estimated position of a lens equator determined as an equator line between each of two intersection points of an anterior lens radius and a posterior lens radius, and an angle to angle width of an anterior chamber of the eye;

estimating, using a prediction model based on a machine learning strategy, a post-operative position of an intraocular lens based on the one or more extracted pre-operative measurements of the eye;

recommending a power of the intraocular lens based on at least the estimated post-operative position of the intraocular lens; and

providing the recommended power to a user to facilitate selection of the intraocular lens for implantation.

20 . The non-transitory machine-readable medium of claim 19 , wherein the method further comprises:

receiving one or more post-operative multi-dimensional images of the eye after implantation of the selected intraocular lens;

extracting one or more post-operative measurements of the eye; and

updating the prediction model based on the one or more pre-operative measurements and the one or more post-operative measurements.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 1, 2024
From: HEGEDUS, IMRE; BOR, ZSOLT
To: ALCON RESEARCH, LTD.
Reel/Frame 066322/0047 →
MERGER AND CHANGE OF NAME Recorded Feb 1, 2024
From: ALCON RESEARCH, LTD.; ALCON RESEARCH, LLC
To: ALCON RESEARCH, LLC
Reel/Frame 066322/0157 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 1, 2024
From: ALCON RESEARCH, LLC
To: ALCON INC.
Reel/Frame 066322/0219 →
Continuity (4)
Continuation 17023348 · Sep 16, 2020
Continuation 16171515 · Oct 26, 2018
Provisional Application 62697367 · Jul 12, 2018
Related Publication 20230389990A1 · Dec 7, 2023
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