公开(公告)号：US20250072745A1

公开(公告)日：2025-03-06

申请号：US18820109

申请日：2024-08-29

Applicant: OSAKA UNIVERSITY ,  TOPCON CORPORATION

Inventor： Takashi FUJIKADO ,  Yoko TATARA ,  Takafumi YUKIMORI ,  Makoto SAIKA ,  Ryoka NORO

IPC: A61B3/032 ,  A61B3/18

Abstract: An ophthalmic examination apparatus includes a visual target projection system including a visual target presentation portion that presents a fixed visual target to left and right subject eyes, an objective measurement optical system that objectively measures eye characteristics of the left and right subject eyes, and a controller that controls each portion of the apparatus, wherein the fixed visual target is a visual target for the left eye and a visual target for the right eye that are to be respectively projected to the left and right subject eyes and have a same drawing pattern in positions where up and down direction positions to visual target flames are the same.

公开(公告)号：US20250072744A1

公开(公告)日：2025-03-06

申请号：US18820069

申请日：2024-08-29

Applicant: OSAKA UNIVERSITY ,  TOPCON CORPORATION

Inventor： Takashi FUJIKADO ,  Yoko TATARA ,  Takafumi YUKIMORI ,  Makoto SAIKA ,  Ryoka NORO

IPC: A61B3/00 ,  A61B3/06 ,  A61B3/08 ,  A61B3/14

Abstract: An ophthalmic examination apparatus includes a visual target projection system that includes a visual target presentation portion that presents a fixed visual target to left and right subject eyes, an objective measurement optical system that objectively measures eye characteristics of the left and right subject eyes, and a controller that controls each portion of the apparatus, wherein the controller measures the eye characteristics of the left and right subject eyes with the objective measurement optical system and acquires an objective refraction value as objective measurement information when fusion is attempted with left and right subject eyes with respect to a change in the convergence distance.

公开(公告)号：US20250057410A1

公开(公告)日：2025-02-20

申请号：US18804483

申请日：2024-08-14

Applicant: OSAKA UNIVERSITY ,  TOPCON CORPORATION

Inventor： Takashi FUJIKADO ,  Yoko TATARA ,  Takafumi YUKIMORI ,  Makoto SAIKA ,  Ryoka NORO ,  Manabu SAKAIHARA

IPC: A61B3/00 ,  A61B3/103

Abstract: An ophthalmologic apparatus includes a visual target presenting portion that presents fixation targets to subject eyes; an objective measurement optical system that objectively measures eye characteristics of the subject eyes; and a controller. Each of the fixation targets includes fusion targets depicted in a manner that allows binocular fusion while the subject eyes respectively view the fixation targets. The visual target presenting portion presents the fixation targets while changing an examination distance from the subject eyes to the fixation target when an anisometropia is induced. In the anisometropia, one subject eye is in a fully corrected condition and the other subject eye is corrected by a predetermined degree from the fully corrected condition. The controller controls the objective measurement optical system to measure the eye characteristics while the subject eyes binocularly view the fixation targets and acquire refractive values of the subject eyes as objective measurement information.