PROBLEM TO BE SOLVED: To provide a new technology to perform OCT measurement in a plurality of measurement ranges while reducing a burden on an examiner and a subject, and changing a wavelength sweep rate.SOLUTION: An ophthalmologic apparatus includes； an interference optical system for performing OCT measurement on the basis of a light from a wavelength sweeping light source whose wavelength sweep rate can be changed； a sampling unit for sampling a result of detection of an interference light acquired by OCT measurement at a predetermined sampling frequency； a moving mechanism for relatively moving an eye to be examined and the interference optical system； and a control unit. The control unit executes first measurement control for causing the OCT measurement to be executed by using a light from the wavelength sweeping light source swept at a first wavelength sweep rate, wavelength sweep rate control for changing the wavelength sweep rate to a second wavelength sweep rate after the first measurement control, and second measurement control for causing the OCT measurement to be executed by using a light from the wavelength sweeping light source swept at a second wavelength sweep rate.SELECTED DRAWING: Figure 3COPYRIGHT: (C)2020,JPO&INPIT【課題】検者及び被検者への負担を軽減し、波長掃引速度を変更しながら複数の計測範囲のＯＣＴ計測を行うための新たな技術を提供する。【解決手段】眼科装置は、波長掃引速度を変更可能な波長掃引光源からの光に基づいてＯＣＴ計測を行うための干渉光学系と、所定のサンプリング周波数でＯＣＴ計測により得られた干渉光の検出結果をサンプリングするサンプリング部と、被検眼と干渉光学系とを相対的に移動する移動機構と、制御部とを含む。制御部は、第１波長掃引速度で掃引される波長掃引光源からの光を用いてＯＣＴ計測を実行させる第１計測制御と、第１計測制御の後に波長掃引速度を第２波長掃引速度に変更する波長掃引速度制御と、第２波長掃引速度で掃引される波長掃引光源からの光を用いてＯＣＴ計測を実行させる第２計測制御とを行う。【選択図】図３
