OPTICAL COHERENCE TOMOGRAPHY-BASED OPHTHALMIC TESTING METHODS, DEVICES AND SYSTEMS

• US 20170119247A1
• Filed: 11/11/2016
• Published: 05/04/2017
• Est. Priority Date: 03/27/2008
• Status: Active Grant

• Current Assignee: Doheny Eye Institute
• Original Assignee: Doheny Eye Institute
• Inventors: Walsh, Alexander C., Updike, Paul G., Sadda, Srinivas R.
• Granted Patent: US 10,165,941 B2
• Time in Patent Office: Days
• CPC Class Codes: A61B 3/0025 characterised by electronic signal processing, e.g. eye models
• CPC Class Codes: A61B 3/0033 characterised by user input arrangements
• CPC Class Codes: A61B 3/0041 characterised by display arrangements
• CPC Class Codes: A61B 3/0091 Fixation targets for viewing direction
• CPC Class Codes: A61B 3/028 for testing visual acuity; for determination of refraction, e.g. phoropters
• CPC Class Codes: A61B 3/085 for testing strabismus
• CPC Class Codes: A61B 3/102 for optical coherence tomography [OCT]
• CPC Class Codes: A61B 3/113 for determining or recording eye movement
• CPC Class Codes: A61B 3/117 for examining the anterior chamber or the anterior chamber angle, e.g. gonioscopes
• CPC Class Codes: A61B 3/132 in binocular arrangement
• CPC Class Codes: A61B 3/18 Arrangement of plural eye-testing or -examining apparatus
• CPC Class Codes: A61B 5/0066 Optical coherence imaging
• CPC Class Codes: A61B 5/0073 by tomography, i.e. reconstruction of 3D images from 2D projections A61B5/0066 takes precedence
• CPC Class Codes: G02C 7/027 considering wearer's parameters

Abstract

In accordance with one aspect of the present invention, an optical coherence tomography-based ophthalmic testing center system includes an optical coherence tomography instrument comprising an eyepiece for receiving at least one eye of a user or subject; a light source that outputs light that is directed through the eyepiece into the user'"'"'s or subject'"'"'s eye, an interferometer configured to produce optical interference using light reflected from the user'"'"'s/subject'"'"'s eye, an optical detector disposed so as to detect said optical interference; and a processing unit coupled to the detector. The ophthalmic testing center system can be configured to perform a multitude of self-administered functional and/or structural ophthalmic tests and output the test data

Claims

1-473. -473. (canceled)

474. An optical coherence tomography instrument comprising:

an eyepiece for receiving at least one eye of a user;

at least one target display visible through said eyepiece;

a light source that outputs light that is directed through the eyepiece to the user'"'"'s eye;

an interferometer configured to produce optical interference using light reflected from the user'"'"'s eye;

an optical detector disposed so as to detect said optical interference; and

electronics coupled to the target display and said detector and configured to provide an output based on optical coherence tomography measurements obtained using said interferometer,

wherein said electronics are further configured to produce features on said target display of varying size and receive user responses to test the user'"'"'s visual acuity, and

wherein the optical coherence tomography instrument is configured to allow the user to self-administer the visual acuity test.

475. The optical coherence tomography instrument of claim 474, further comprising a voice recognition interface to receive user responses.

476. The optical coherence tomography instrument of claim 474, further comprising a keypad to receive user responses.

477. The optical coherence tomography instrument of claim 474, further comprising a toggle to receive user responses.

478. The optical coherence tomography instrument of claim 474, further comprising a button to receive user responses.

479. The optical coherence tomography instrument of claim 474, further comprising a touch pad to receive user responses.

480. The optical coherence tomography instrument of claim 474, further comprising a touch sensor to receive user responses.

481. The optical coherence tomography instrument of claim 474, further comprising a foot pedal to receive user responses.

482. The optical coherence tomography instrument of claim 474, further comprising a knob to receive user responses.

483. The optical coherence tomography instrument of claim 474, further comprising a rotating handle to receive user responses.

484. The optical coherence tomography instrument of claim 474, further comprising a microphone to receive user responses.

485. The optical coherence tomography instrument of claim 474, wherein the detector comprises a CCD or CMOS detector array and the electronics comprises a microprocessor.

486. The optical coherence tomography instrument of claim 474, wherein the electronics are configured to test the user'"'"'s visual acuity in both eyes simultaneously.

487. The optical coherence tomography instrument of claim 474, wherein the electronics are configured to test the user'"'"'s visual acuity in one eye at a time.

488. The optical coherence tomography instrument of claim 474, wherein the electronics are configured to perform an assessment of visual acuity and output the assessment of visual acuity through an output device.

489. The optical coherence tomography instrument of claim 488, wherein the output device comprises a printer or a display.

490. The optical coherence tomography instrument of claim 474, wherein the at least one target display comprises a first target display and a second target display.

491. The optical coherence tomography instrument of claim 474, further comprising a fixation marker control system configured to display a fixation marker visible by the user.

492. The optical coherence tomography instrument of claim 491, wherein the fixation marker can be configured to move.