PROBLEM TO BE SOLVED: To suppress an amount of measurement light reaching retina of an eyeball relative to that when not radiating irradiation light having an energy density lower than that of measurement light before radiating measurement light.SOLUTION: An optical measurement device 1 includes: an optical system 20 for radiating measurement light to an eyeball 10 of a subject to optically measure the eyeball 10 and a light radiation part 30 for irradiating the eyeball 10 with irradiation light having an energy density lower than that of measurement light before optical measurement by the optical system 20.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2018,JPO&INPIT【課題】計測光に比べてエネルギ密度が低い照射光を光計測の前に照射しない場合に比べて、眼球の網膜への計測光の到達量を抑制する。【解決手段】光計測装置1は、被計測者の眼球10に計測光を照射して、眼球10を光計測する光学系20と、光学系20による光計測の前に、計測光よりエネルギ密度の低い照射光を眼球10に照射する光照射部30とを備えている。【選択図】図1
