Erzeugung und Auswertung von Zwei- und Dreidimensionalen Bildern des Inneren eines Auges

Details

Veröffentlichungs-Nr.

EP4725464

Anmeldetag

5. Oktober 2022

Veröffentlichung

15. April 2026

Rechtsraum

EP

IPC

A61F9/008(ZEISS CARL MEDITEC AG et al.)(AN LIN et al.)

Abstract

In certain embodiments, an ophthalmic system for imaging a target includes an optical coherence tomography (OCT) device that: directs an imaging beam towards a volume comprising the target, wherein a z-axis of the volume defines a plurality of xy-planes within the volume; receives the imaging beam reflected from the volume; generates three-dimensional (3D) image data from the imaging beam reflected from the eye; and generates two-dimensional (2D) enface images from the 3D image data. each of the plurality of 2D enface images is disposed along one of the plurality of xy-planes; The plurality of 2D enface images comprising at least one first enface image depicting target in the volume and at least one second enface image depicting a shadow cast by the target. An xy scanner is configured to receive the imaging beam from the OCT device and direct the imaging beam along the imaging beam path toward the target. A computer configured to compare to the target of the first enface image and the shadow of the second enface image to confirm the presence of the target.

Anmelder

Firma

Alcon Inc.

Land

🇨🇭 Schweiz