公开(公告)号：WO2021245470A1

公开(公告)日：2021-12-09

申请号：PCT/IB2021/052924

申请日：2021-04-08

Applicant: ALCON INC.

Inventor： BOR, Zsolt

IPC: G06F3/01 ,  A61B3/113 ,  A61B3/0025 ,  A61B3/0091 ,  A61B3/103 ,  A61B3/14 ,  G02C7/024

Abstract: The devices and methods described herein provide improved methods for accurately identifying and locating the visual axis of the eye and its intersection with the iris plane. In one embodiment, a visual axis identification system includes a fixation light source, a camera, and a processing system. During operation thereof, the patient focuses their gaze onto two or more fixation light spots provided by the fixation light source upon an optical axis thereof, which creates two or more corresponding images on or near to the patient's retina. The patient's head is then rotated relative while the patient continuously maintains their gaze on the fixation light spots. The patient's visual axis may be located by determining the location of the optical axis of the fixation light source relative to the patient's eye when the centers of the multiple images coincide in the patient's view.

公开(公告)号：WO2021209669A1

公开(公告)日：2021-10-21

申请号：PCT/ES2021/070253

申请日：2021-04-16

Applicant: UNIVERSIDAD COMPLUTENSE DE MADRID

Inventor： PUELL MARÍN, María Cinta

IPC: A61B3/06 ,  A61B3/02 ,  A61B3/024 ,  A61B3/0008 ,  A61B3/0025 ,  A61B3/0033

Abstract: Se presenta un método y sistema de implementación del mismo que informa simultáneamente del funcionamiento tanto de la retina externa como interna de forma rápida. Comprende el deslumbramiento breve del ojo de un sujeto con una fuente de luz para producir una insensibilidad al contraste transitoria y medir psicofísicamente durante un tiempo de forma automatizada el contraste y el momento temporal al que dicho sujeto detecta estímulos visuales sucesivos modulados en su contraste y presentados sobre un fondo de luminancia mesópico. Se registran las respuestas que el sujeto proporciona durante la recuperación de la sensibilidad al contraste mediada por los conos de la retina para obtener parámetros caracterizadores de esta dinámica de recuperación y compararlos con una base de datos normativa para detectar alteraciones de la función visual propias de enfermedades neurodegenerativas de la retina.

公开(公告)号：WO2020201999A2

公开(公告)日：2020-10-08

申请号：PCT/IB2020/053035

申请日：2020-03-31

Applicant: EVOLUTION OPTIKS LIMITED

Inventor： GOTSCH, Daniel ,  LUSSIER, Guillaume ,  EL-MONAJJED, Khaled

IPC: G02B27/14 ,  G06T17/00 ,  A61B3/0025 ,  A61B3/0041 ,  A61B3/113 ,  G02B27/0093 ,  G06F3/013

Abstract: Described are various embodiments of a pupil tracking system and method, and digital display device and digital image rendering system and method using same. In one embodiment, a computer-implemented method for dynamically adjusting rendering of a digital image using a light field display comprises: sequentially acquiring a user pupil location; digitally computing a velocity thereof over time; digitally comparing the velocity with a designated threshold pupil velocity; digitally rendering the digital image via the light field display in accordance with a maintained light field viewing zone geometry digitally defined in respect of a previously acquired user pupil location unless the velocity is above the designated threshold pupil velocity.

公开(公告)号：WO2022010653A1

公开(公告)日：2022-01-13

申请号：PCT/US2021/038726

申请日：2021-06-23

Applicant: SCINTELLITE, LLC ,  RAYMOND, Thomas D. ,  FARRER, Stephen W.

Inventor： RAYMOND, Thomas D. ,  FARRER, Stephen W.

IPC: A61B3/103 ,  A61B3/0008 ,  A61B3/0025 ,  A61B3/0041 ,  A61B3/032 ,  A61B3/102 ,  A61B3/113 ,  A61B3/12 ,  A61B3/135 ,  A61B3/16 ,  A61B3/18 ,  G16H40/67

Abstract: An eye measurement system includes an optical system. The eye measurement system is disposed in a housing which includes an aperture for providing light to and from the optical system and a subject's eye while the subject is separated and spaced apart from the housing, and the eye is not maintained in a fixed positional relationship with respect to the housing. An optical system movement arrangement moves the optical system. An automatic eye tracking arrangement ascertains a current positional relationship of the eye with respect to the optical system without human assistance, and in response thereto controls the optical system movement arrangement to move the optical system into a predetermined positional relationship with respect to the eye, for measurement of the eye, without human assistance. The eye measurement system can make objective, and/or subjective, refraction measurements of the eye.

公开(公告)号：WO2021256922A1

公开(公告)日：2021-12-23

申请号：PCT/NL2021/050375

申请日：2021-06-14

Applicant: AKKOLENS INTERNATIONAL B.V.

Inventor： ROMBACH, Michiel Christiaan ,  VAN LAWICK, Willem Pieter

IPC: A61B3/10 ,  A61B3/14 ,  A61B3/0008 ,  A61B3/0025 ,  A61B3/1005 ,  A61B3/107 ,  A61B3/117

Abstract: Apparatus for imaging and measuring the accommodation structure of the eye with the apparatus comprising a light source providing spot-illumination of the rim of the cornea at a slanted angle with the cornea guiding the light to the largely full rim of the cornea thereby illuminating the rim by scattered light emitted by scattering of light inside the eye at the limbus with the image provided by a telecentric lens which allows for accurate measurements of the diameter of the iris without aid of mechanical calibration tools.

公开(公告)号：WO2021123926A1

公开(公告)日：2021-06-24

申请号：PCT/IB2020/055757

申请日：2020-06-18

Applicant: ALCON INC.

Inventor： MISSEL, Paul

IPC: G06T7/50 ,  A61B3/117 ,  A61B3/0025 ,  A61B3/1005 ,  A61B3/1173 ,  A61B3/145 ,  A61F2/16 ,  A61F9/007 ,  G06T2207/10088 ,  G06T2207/10101 ,  G06T2207/10132 ,  G06T2207/30041 ,  G06T3/00 ,  G06T7/62

Abstract: A system includes a controller with at least one processor and at least one non-transitory, tangible memory on which instructions are recorded for executing a method for obtaining a profile of a lens capsule of an eye. The profile is represented by respective central surfaces and respective equatorial surfaces separated at respective transition points. The controller is configured to obtain imaging data for a portion of the lens capsule visible through a pupil of the eye. The imaging data is transformed to an adjusted frame of reference and fitted to the respective central surfaces in a predefined central region of the lens capsule. The profile is obtained based on a set of fitting parameters for the respective central and equatorial surfaces. The respective central surfaces and respective equatorial surfaces may be represented as elliptical cones and skewed parabolas, respectively.

公开(公告)号：WO2023059276A1

公开(公告)日：2023-04-13

申请号：PCT/TR2021/051029

申请日：2021-10-08

Applicant: KOC UNIVERSITESI

Inventor： UREY, Hakan ,  KAVAKLI, Koray ,  AYDINDOGAN, Gunes ,  SAHIN, Afsun

IPC: A61B3/00 ,  A61B3/113 ,  A61B3/103 ,  A61B3/107 ,  A61B3/02 ,  A61B3/028 ,  A61B3/06 ,  A61B3/08 ,  A61B3/024 ,  A61B3/0025 ,  A61B3/005 ,  A61B3/022

Abstract: A near-eye ophthalmic simulation device suitable for use before cataract and/or refractive lens exchange operations, comprising a pupil tracking unit (37) to detect the position of an eye pupil (13), a computer-generated holographic display (21) that can form at least one exit pupil (14) wherein the each of the at least one exit pupils (14) are independently sized and positioned relative to the position of said eye pupil (13); wherein each of the at least one exit pupil (14) is configured to create a projected pattern on the retina (11) of the viewer and carries visual information configured to simulate post-operative vision, wherein at least one visual parameter is selectively configurable within said simulator.

公开(公告)号：WO2022235578A2

公开(公告)日：2022-11-10

申请号：PCT/US2022/027312

申请日：2022-05-02

Applicant: NEURALIGHT LTD. ,  BEN-AMI, Edmund ,  BREAKSTONE, Micha Yochanan ,  BAR-OR, Rotem Zvi ,  ANISIMOV, Vladimir

Inventor： BEN-AMI, Edmund ,  BREAKSTONE, Micha Yochanan ,  BAR-OR, Rotem Zvi ,  ANISIMOV, Vladimir

IPC: G06F3/01 ,  A61B3/00 ,  A61B3/11 ,  A61B3/113 ,  A61B3/14 ,  A61B3/0025 ,  G06F3/013 ,  G06N3/02 ,  G06T2207/20081 ,  G06T2207/30041 ,  G06T7/0012 ,  G06V40/18

Abstract: Disclosed are systems and methods for extracting high resolution oculometric parameters and eye movement parameters. A video stream having a video of a face of a user is processed to obtain a set of oculometric parameters, such as eyelid data, iris data (e.g., iris translation, iris radius and iris rotation), and pupil data (e.g., pupil center and pupil radius). The oculometric parameters are generated at a first temporal resolution. The oculometric parameters are up sampled to increase the temporal resolution to a second temporal resolution. The oculometric parameters are then processed to generate various eye movement parameters such as blink parameter, pupil response parameter, saccade parameter, anti-saccade parameter, fixation parameter, or smooth pursuit parameter. The oculometric parameters are synchronized with a video stimulus presented on a user device prior to generating the eye movement parameters.

公开(公告)号：WO2021139446A1

公开(公告)日：2021-07-15

申请号：PCT/CN2020/132473

申请日：2020-11-27

Applicant: 平安科技（深圳）有限公司

Inventor： 张潇月 ,  张成奋 ,  吕彬 ,  吕传峰

IPC: A61B3/10 ,  A61B3/0025 ,  A61B3/102 ,  A61B3/1225 ,  G06K9/629 ,  G06Q10/04 ,  G06T2207/10101 ,  G06T2207/30101 ,  G06T7/0012 ,  G16H30/20

Abstract: 一种抗血管内皮生长因子VEGF疗效预测装置及方法。该装置包括：获取模块（501），用于获取针对黄斑区采集的多张光学相干断层扫描仪OCT图像；特征提取模块（502），用于对多张OCT图像进行特征提取，得到多张OCT图像对应的多个图像特征，其中，多张OCT图像中的每张OCT图像对应的图像特征包括每张OCT图像中的多尺度特征；空间信息融合模块（503），用于将多张OCT图像对应的多个图像特征进行空间信息融合，得到多张OCT图像对应的特征；确定模块（504），用于根据多张OCT图像对应的特征，确定抗VEGF疗效预测结果。该装置有利于提高抗VEGF疗效预测的精确度。

公开(公告)号：WO2021130567A1

公开(公告)日：2021-07-01

申请号：PCT/IB2020/060855

申请日：2020-11-18

Applicant: AMO DEVELOPMENT, LLC

Inventor： COPLAND, Richard J.

IPC: A61B3/00 ,  A61B3/10 ,  A61B3/103 ,  A61B3/0025 ,  A61B3/0041 ,  A61B3/0091 ,  A61B3/1015 ,  A61B3/102 ,  A61B3/14

Abstract: A system (1000) includes: a first movable stage (1088) which is movable with respect to an eye (101) of a subject; a second movable stage (1089) mounted on the first movable stage (1088), wherein the second movable stage (1089) is movable with respect to the first movable stage (1088); a fixation target (1082) disposed on the second movable stage (1089); and an optical system (1083, 1084, 1085, 3080 ) disposed in an optical path between the fixation target (1082) and the eye (101), wherein the optical system (1083, 1084, 1085, 3080 ) is configured for projecting the fixation target (1082) upon the eye to accommodate the eye. The optical system includes a Stokes cell (3080) in the optical path between the fixation target (1082) and the eye (101). The optical system non-telecentrically projects the fixation target (1082) upon the eye (101).