公开(公告)号：EP4094675A1

公开(公告)日：2022-11-30

申请号：EP20915808.8

申请日：2020-07-10

Applicant: TOPCON CORPORATION

Inventor： SUZUKI Masaya ,  NAKAJIMA Masashi ,  SHIMIZU Hitoshi

IPC: A61B3/12

Abstract: This ophthalmic device includes a light source, an illumination optical system, an optical scanner, an imaging optical system, and a control unit. The illumination optical system generates slit-shaped illumination light using light from the light source. The optical scanner deflects and guides the illumination light to the fundus of an eye being examined. The imaging optical system guides return light of the illumination light from the fundus to an image sensor. The control unit controls the image sensor in a rolling shutter manner. The illumination optical system comprises: a slit having a slit-shaped opening that can be positioned substantially optically conjugate with the fundus; an iris aperture that is positioned between the light source and the slit and can be positioned substantially optically conjugate with the iris of the eye being examined; and an optical element that is positioned between the light source and the iris aperture and deflects light from the light source.

公开(公告)号：EP4226843A1

公开(公告)日：2023-08-16

申请号：EP21880046.4

申请日：2021-10-11

Applicant: TOPCON CORPORATION

Inventor： NAKAJIMA Masashi ,  FUKUMA Yasufumi ,  Yeh Shuyun

IPC: A61B3/103

Abstract: Disclosed is a myopia progression analysis device including: an eye axial length acquisition section 111 that acquires an eye axial length of an eye of a subject; a reference value acquisition section 112 that acquires a numerical value related to a physical characteristic of the subject other than the eye axial length as a reference value; a relative eye axial length calculator 113 that calculates a relative eye axial length through relativization of the eye axial length acquired by the eye axial length acquisition section 111 using the reference value acquired by the reference value acquisition section 112; a population information acquisition section 114 that acquires population information which is a set of information about relative eye axial lengths of a plurality of comparison targets to be compared with the subject; and a relative position information calculator 115 that compares the relative eye axial length of the subject calculated by the relative eye axial length calculator with the relative eye axial lengths of the plurality of comparison targets included in the population information to calculate relative position information indicating a relative position of the relative eye axial length of the subject in the set of comparison targets.

公开(公告)号：EP4289338A1

公开(公告)日：2023-12-13

申请号：EP21924654.3

申请日：2021-02-05

Applicant: TOPCON CORPORATION

Inventor： MINO Toshihiro ,  YEH Shuyun ,  NAKAJIMA Masashi ,  FUKUMA Yasufumi

IPC: A61B3/10

Abstract: This ophthalmic information processing device includes an acquisition unit and a normalization unit. The acquisition unit acquires eye shape data or an intraocular distance of an eye of a subject. The normalization unit normalizes the eye shape data or the intraocular distance on the basis of body data of the subject or the degree of refraction of the eye of the subject.

公开(公告)号：EP3912544A1

公开(公告)日：2021-11-24

申请号：EP20741052.3

申请日：2020-01-09

Applicant: TOPCON CORPORATION

Inventor： NAKAJIMA Masashi ,  LIU Jonathan ,  FUKUMA Yasufumi

IPC: A61B3/10 ,  A61B3/103

Abstract: This ophthalmic device includes an acquisition unit, an OCT unit, an analysis unit, and an estimation unit. The acquisition unit acquires the degree of refraction of a first region that includes the fovea of an eye being examined. The OCT unit acquires OCT data for the fundus of the eye using optical coherence tomography. The analysis unit identifies the shape of the fundus by analyzing the OCT data. The estimation unit estimates the degree of refraction of the region of the fundus surrounding the first region on the basis of the degree of refraction of the first region and the shape of the fundus.