Tomey Corporation

Risa Higashita

Keiichiro Okamoto

Fushi Li

Chuang Hsin Yuan

Makoto Kojima

A tomographic image processing device includes a tomographic image acquisition unit that acquires a plurality of tomographic images including an anterior chamber angle, the tomographic images being obtained by radial scan with a substantially conical vertex as a center; an analysis unit that obtains an analysis value related to the anterior chamber angle from each of the plurality of tomographic images; and a display processing unit that causes a display unit to display information regarding each analysis value obtained from each of the plurality of tomographic images in association with a rotation angle in the radial scan at which the anterior chamber angle corresponding to the analysis value is obtained.

Tomographic image processing device and program

An ophthalmic apparatus that includes an image capturing unit configured to capture a target part of a subject eye; a processor; and a memory storing computer-readable instructions therein. The computer-readable instructions, when executed by the processor, may cause the ophthalmic apparatus to execute: acquiring a first image of the target part captured at a first timing by the image capturing unit and a second image of the target part captured at a second timing different from the first timing; and combining the first image with the second image to generate one combined image of the target part.

Ophthalmic apparatus

An ophthalmic device that includes an image capturing unit configured to capture a tomographic image of a crystalline lens of a subject eye; a processor; and a memory storing computer-readable instructions therein. The computer-readable instructions, when executed by the processor, may cause the processor to execute: detecting a boundary between tissues in a tomographic image of the crystalline lens of the subject eye captured by the image capturing unit; determining whether the tissues defined by the boundary include an abnormality; and analyzing an analysis item associated with the abnormality.

Ophthalmic device

An anterior eye three-dimensional (3D) image processing apparatus performs: identifying first temporary SS positions in each of at least two representative images selected from a plurality of 2D tomographic images constituting an anterior eye 3D image, each first temporary SS position indicating a space coordinate position of a scleral spur of the subjected eye; calculating a reference circle passing through at least three of the first temporary SS positions; identifying second temporary SS positions in each of at least one non-representative image on the calculated reference circle; extracting regions in a predetermined range in each 2D tomographic image, each region being centered at a corresponding one of the identified first or second temporary SS positions; identifying edge lines each of which indicating a tissue boundary that exists in each extracted region; and correcting the identified first or the second temporary SS positions based on the identified edge lines.

Anterior eye three-dimensional image processing apparatus and method of anterior eye three-dimensional image processing

An anterior ocular segment optical coherence tomographic imaging device and an anterior ocular segment optical coherence tomographic imaging method that can accurately analyze the shape of a crystalline lens by identifying the boundary of each layer of the crystalline lens in a tomographic image of an anterior ocular segment of a subject's eye, which is taken by optical coherence tomography. A layer boundary detector calculates brightness gradients from brightness values in a tomographic image of an anterior ocular segment of a subject's eye, which is taken by optical coherence tomography, in a depth direction of the tomographic image from a cornea to a retina, detect edges b, b, b, and bthat are larger than a predetermined threshold, and identify a boundary of each layer of the crystalline lens L from positions of the edge b, b, b, and b

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Nagoya, Japan

Risa Higashita