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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
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.
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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
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.
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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
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.
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公开(公告)号：US20230309822A1
公开(公告)日：2023-10-05
申请号：US18126447
申请日：2023-03-26
Applicant: TOPCON CORPORATION
Inventor： Takafumi YUKIMORI , Makoto SAIKA , Yoko TATARA , Akio HAYASHI
CPC classification number: A61B3/103 , A61B3/0041 , A61B3/0025
Abstract: An ophthalmologic apparatus includes a subjective measurement optical system configured to measure a subjective refractive value of a subject eye, an objective measurement optical system configured to measure objective refractive characteristics of the subject eye, and a controller configured to control the subjective measurement optical system and the objective measurement optical system. The controller is further configured to measure the objective refractive characteristics of the subject eye by the objective measurement optical system and perform objective monitoring to monitor objective measurement information obtained by the measurement of the objective refractive characteristics during an RG test for checking whether or not corrected power is overcorrected or undercorrected by the subjective measurement optical system.
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公开(公告)号：US20250000358A1
公开(公告)日：2025-01-02
申请号：US18887053
申请日：2024-09-17
Applicant: TOPCON CORPORATION
Inventor： Takafumi YUKIMORI , Hajime NAKANISHI
Abstract: An ophthalmic device includes a detecting unit configured to detect a relative position of a subject eye relative to a ocular characteristic acquiring unit, a provisional alignment controlling unit configured to drive a relatively-moving unit based on a detection result by the detecting unit and perform provisional alignment, a re-detecting unit configured to repeatedly detect the relative position after completion of the provisional alignment, a determining unit configured to determine whether the ocular characteristic acquiring unit has been brought closer to the subject eye by a distance greater than or equal to a predetermined threshold value by the provisional alignment based on the detection result, and an operation mode selecting unit configured to select either one of a normal mode and a quick mode as an operation mode for alignment and acquisition of the ocular characteristic based on a determination result by the determining unit.
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Patent Agency Ranking
公开(公告)号：US20230309828A1
公开(公告)日：2023-10-05
申请号：US18126446
申请日：2023-03-26
Applicant: TOPCON CORPORATION
Inventor： Takafumi YUKIMORI , Makoto SAIKA , Yoko TATARA , Akio HAYASHI
CPC classification number: A61B3/18 , A61B3/032 , A61B3/103 , A61B3/0058
Abstract: An ophthalmologic apparatus includes a subjective measurement optical system configured to measure a subjective refractive value of a subject eye; an objective measurement optical system configured to measure objective refractive characteristics of the subject eye; and a controller configured to control the subjective measurement optical system and the objective measurement optical system. The controller is further configured to perform measurement of the objective refractive characteristics of the subject eye by the objective measurement optical system and perform objective monitoring to monitor objective measurement information obtained by the measurement of the objective refractive characteristics during a weakest power test in which a weakest point is being obtained by the subjective measurement optical system, a maximum visual acuity value or a set predetermined visual acuity value being readable from the weakest point.
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公开(公告)号：US20240108213A1
公开(公告)日：2024-04-04
申请号：US18371059
申请日：2023-09-21
Applicant: TOPCON CORPORATION
Inventor： Takafumi YUKIMORI , Yoko TATARA , Makoto SAIKA
CPC classification number: A61B3/0091 , A61B3/103
Abstract: An ophthalmologic apparatus includes a target projection system that presents an eye chart to a subject eye, an objective measurement optical system that objectively measures an eye characteristic of the subject eye, and a control portion that controls the target projection system and the objective measurement optical system, wherein the control portion presents the target for a predetermined time at a predetermined presentation position with the target projection system, and objectively measures the eye characteristic with the objective measurement optical system in a time series to control an operation of each portion based on a measurement result of the objective measurement.
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公开(公告)号：US20240099579A1
公开(公告)日：2024-03-28
申请号：US18370952
申请日：2023-09-21
Applicant: TOPCON CORPORATION
Inventor： Takafumi YUKIMORI , Yoko TATARA , Makoto SAIKA
CPC classification number: A61B3/117 , A61B3/085 , A61B3/14 , A61B3/0041
Abstract: An ophthalmic apparatus includes an image acquisition unit configured to acquire an anterior segment image of a subject eye, an optotype projection system configured to present an optotype to the subject eye in at least two presentation positions different from each other, and a line-of-sight direction detection unit configured to extract a feature point from the anterior segment image that has been acquired by the image acquisition unit when the optotype has been presented in each of the at least two presentation positions, detect positional information on the anterior segment image of the feature point that has been extracted, and detect a line-of-sight direction of the subject eye on a basis of the positional information.
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公开(公告)号：US20240090761A1
公开(公告)日：2024-03-21
申请号：US18368945
申请日：2023-09-15
Applicant: TOPCON CORPORATION
Inventor： Takafumi YUKIMORI , Yoko TATARA , Makoto SAIKA
IPC: A61B3/103
CPC classification number: A61B3/103
Abstract: An ophthalmologic apparatus includes an objective measurement optical system that measures an objective refraction characteristic of a subject eye and a control portion that performs total control including control of the objective measurement optical system, wherein the control portion analyzes a characteristic amount of a ring image obtained by measuring the objective refraction characteristic of the subject eye to feedback to a subjective examination content of the subject eye according to an analysis result of the characteristic amount of the ring image.
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公开(公告)号：US20230309819A1
公开(公告)日：2023-10-05
申请号：US18127280
申请日：2023-03-28
Applicant: TOPCON CORPORATION
Inventor： Yoko TATARA , Makoto SAIKA , Takafumi YUKIMORI
CPC classification number: A61B3/032 , A61B3/0075 , A61B3/18
Abstract: An ophthalmologic apparatus includes an optotype presentation mechanism that presents an optotype to a left subject eye and a right subject eye, and is capable of changing a brightness difference between the optotype presented to the left subject eye and the optotype presented to the right subject eye, a convergence adjustment mechanism configured to adjust a convergence distance, an eye information obtaining portion configured to obtain eye information on the left subject eye and the right subject eye, and a controller configured to control the optotype presentation mechanism, the convergence adjustment mechanism, and the eye information obtaining portion, wherein the controller sets the convergence distance to a distance different from a optotype presentation distance, gradually increases a brightness difference, and detects a visual line direction of the left subject eye and a visual line direction of the right subject eye based on the eye information.
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