公开(公告)号：US20220280036A1

公开(公告)日：2022-09-08

申请号：US17637082

申请日：2020-06-02

Applicant: Topcon Corporation

Inventor： Jonathan LIU ,  Hitoshi SHIMIZU ,  Hisashi TSUKADA

IPC: A61B3/135 ,  A61B3/14 ,  A61B3/00 ,  A61B3/10

Abstract: A slit lamp microscope of some aspect examples includes a scanner and a rendering processor. The scanner is configured to scan an anterior segment of a subject's eye with slit light to collect a plurality of cross sectional images. The rendering processor is configured to apply rendering to a three dimensional image created from the plurality of cross sectional images.

公开(公告)号：US20230000346A1

公开(公告)日：2023-01-05

申请号：US17641440

申请日：2020-08-31

Applicant: Topcon Corporation

Inventor： Jonathan LIU ,  Hitoshi SHIMIZU ,  Hisashi TSUKADA

IPC: A61B3/117 ,  A61B3/135 ,  A61B3/14 ,  A61B3/00 ,  G06T7/11 ,  G06T7/00

Abstract: A slit lamp microscope of an aspect example includes a scanner and a data processor. The scanner is configured to scan an anterior segment of a subject's eye with slit light to collect a plurality of cross sectional images. The data processor is configured to generate opacity distribution information that represents a distribution of an opaque area in a crystalline lens, based on the plurality of cross sectional images collected by the scanner.

公开(公告)号：US20200221947A1

公开(公告)日：2020-07-16

申请号：US16408483

申请日：2019-05-10

Applicant: TOPCON CORPORATION

Inventor： Toshihiro MINO ,  Jonathan LIU

IPC: A61B3/10 ,  A61B3/00 ,  G06T7/00 ,  A61B3/103

Abstract: An ophthalmologic information processing apparatus includes an acquisition unit, a tissue specifying unit, and a specifying unit. The acquisition unit is configured to acquire a tomographic image of a subject's eye. The tissue specifying unit is configured to acquire first shape data representing shape of a tissue of the subject's eye by performing segmentation processing on each of a plurality of tomographic images acquired by the acquisition unit. The specifying unit is configured to obtain second shape data representing shape of the tissue based on the plurality of first shape data acquired by the tissue specifying unit.

公开(公告)号：US20200221948A1

公开(公告)日：2020-07-16

申请号：US16412433

申请日：2019-05-15

Applicant: TOPCON CORPORATION

Inventor： Toshihiro MINO ,  Jonathan LIU

IPC: A61B3/10 ,  A61B3/00 ,  A61B3/12 ,  A61B5/00 ,  G06T7/11

Abstract: An ophthalmologic information processing apparatus includes an acquisition unit, a tissue specifying unit, and a specifying unit. The acquisition unit is configured to acquire a tomographic image of a subject's eye formed based on scan data acquired using an optical system for performing optical coherence tomography on the subject's eye. The tissue specifying unit is configured to acquire first shape data representing shape of a tissue of the subject's eye by performing segmentation processing on the tomographic image. The specifying unit is configured to specify a low sensitivity component having a small variation with respect to a change in a position of the optical system with respect to the subject's eye from the first shape data, and to obtain second shape data representing shape of the tissue based on the specified low sensitivity component.

公开(公告)号：US20200221946A1

公开(公告)日：2020-07-16

申请号：US16377263

申请日：2019-04-08

Applicant: TOPCON CORPORATION

Inventor： Toshihiro MINO ,  Jonathan LIU

IPC: A61B3/10 ,  A61B3/15 ,  A61B3/103 ,  A61B3/107 ,  A61B3/13 ,  A61B3/18

Abstract: An ophthalmologic apparatus of embodiments includes an OCT unit, an acquisition unit, and a specifying unit. The OCT unit is configured to acquire a tomographic image of a subject's eye using optical coherence tomography. The acquisition unit is configured to acquire a front image of the subject's eye. The specifying unit is configured to specify shape of a tissue of the subject's eye based on the tomographic image acquired by the OCT unit and the front image acquired by the acquisition unit.

公开(公告)号：US20210338076A1

公开(公告)日：2021-11-04

申请号：US17375026

申请日：2021-07-14

Applicant: Topcon Corporation

Inventor： Masashi NAKAJIMA ,  Jonathan LIU ,  Yasufumi FUKUMA

IPC: A61B3/103 ,  A61B3/00 ,  A61B3/10 ,  A61B3/12

Abstract: An ophthalmic apparatus includes an acquiring unit, an OCT unit, an analyzer, and a calculator. The acquiring unit is configured to acquire a dioptric power in a first region including a fovea of a subject's eye. The OCT unit is configured to acquire OCT data of a fundus of the subject's eye using optical coherence tomography. The analyzer is configured to specify a shape of the fundus by analyzing the OCT data. The calculator is configured to calculate a dioptric power in a peripheral region of the first region of the fundus based on the dioptric power in the first region and the shape of the fundus.