公开(公告)号：US20250107708A1

公开(公告)日：2025-04-03

申请号：US18896568

申请日：2024-09-25

Applicant: TOPCON CORPORATION

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

IPC: A61B3/103 ,  A61B3/00

Abstract: An ophthalmologic apparatus includes a visual-target presenting portion that is configured to present visual targets to left and right subject eyes, respectively; and an objective measurement optical system that is configured to objectively measure eye characteristics of the left and right subject eyes, respectively. The visual-target presenting portion is configured to present the visual targets while changing a convergence position, where two lines of sight from positions of the left and right subject eyes intersect, with pinhole plates respectively disposed at positions conjugate with pupils of the left and right subject eyes. The objective measurement optical system is configured to obtain the objective refractive values of the left and right subject eyes, respectively, under a condition where the pinhole plates are respectively disposed by the visual-target presenting portion and the visual targets presented at the convergence position are binocularly fused.

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.