OPHTHALMIC APPARATUS

An ophthalmic apparatus (1) of an exemplary embodiment is capable of applying OCT to the fundus (Ef) of a subject's eye (E), and includes an optical system, an optical scanner (44), an optical path length changing device (41), a focus adjustment device (43, 43A), and a controller (200). The opt...

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Bibliographic Details
Main Authors SAIKA, Makoto, SAKAI, Jun, FUJII, Kouta
Format Patent
LanguageEnglish
French
German
Published 02.11.2022
Subjects
DIAGNOSIS
HUMAN NECESSITIES
HYGIENE
IDENTIFICATION
MEDICAL OR VETERINARY SCIENCE
SURGERY
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Summary:An ophthalmic apparatus (1) of an exemplary embodiment is capable of applying OCT to the fundus (Ef) of a subject's eye (E), and includes an optical system, an optical scanner (44), an optical path length changing device (41), a focus adjustment device (43, 43A), and a controller (200). The optical system splits light output from a light source (101) into measurement light (LS) and reference light (LR), projects the measurement light (LS) onto the fundus (Ef), generates interference light (LC) by superposing returning light of the measurement light from the subject's eye on the reference light, and detects (125) the interference light. The optical scanner (44) deflects the measurement light (LS) in a two dimensional manner for scanning the fundus (Ef). The optical path length changing device (41, 114) changes at least one of an optical path length of the measurement light (LS) and an optical path length of the reference light (LR). The focus adjustment device (43, 43A) performs focus adjustment of the optical system. The controller (200) controls the optical scanner (44) based on at least the optical path length.
Bibliography:Application Number: EP20220175085