Method and system for pupil retro illumination using sample arm of oct interferometer
AssigneeAMO Development, LLC
InventorRichard J. Copland
Life of this patent
Estimating the term…
Abstract
An optical measurement instrument includes optical coherence tomography (OCT) interferometer and a pupil retro illumination system which directs laser light onto the retina of an eye via the sample arm of the OCT interferometer. The laser light passes through an intraocular lens (IOL) implanted into the eye, and an iris camera captures an image of the eye from a portion of the light returned from the retina of the eye, the returned light also passing through the IOL. One or more fiducials of the IOL are detected from the captured image, and an angular orientation of the eye is ascertained from the one or more detected fiducials.
Claims9
A system, comprising:
- a wavefront aberrometer configured to measure one or more characteristics of an eye into which an intraocular lens (IOL) has been implanted;
- an optical coherence tomography (OCT) interferometer, the OCT interferometer including a sample path which is configured to direct an OCT probe beam into the eye and which is configured to receive a portion of the OCT probe beam back from the eye in order to perform an OCT measurement of the eye;
- a pupil retro illumination light source configured to direct pupil retro illumination light to the retina of the eye via the sample path of the OCT interferometer;
- an iris camera configure to capture an image of eye from the pupil retro illumination light returned from the pupil and passing through the IOL;
- a processor configured to detect one or more fiducials of the IOL from the captured image, and from the detected one or more fiducials to ascertained an angular orientation of the IOL within the eye.
9-16. (canceled)
Dependencies are inferred from the claim text.