PROBLEM TO BE SOLVED: To provide an optical measurement device of an eyeball which improves accuracy of optical measurement as compared with a case where correction corresponding to an incident state on a light receiving surface receiving a light beam is not performed.SOLUTION: An optical measurement device 1 of an eyeball comprises: a light irradiation system 21 for irradiating an anterior chamber 13 of an eyeball 10 of a subject with a light beam 28 a light reception system 22 having a light receiving surface 35a of a light receiver 35 for receiving the light beam 28 having passed through the anterior chamber 13 of the eyeball 10 and an incident state measurement system 23 which is provided between the eyeball 10 and the light irradiation system 21 so as to be able to receive at least a part of the light beam 28 having passed through the anterior chamber 13 of the eyeball 10 and has a light receiving surface 51a of a light receiver 51 capable of measuring an incident position of the light beam 28.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2018,JPO&INPIT【課題】光ビームを受光する受光面への入射状態に対応した補正をしない場合に比べて、光計測の精度を向上させた眼球の光計測装置を提供する。【解決手段】眼球の光計測装置1は、被計測者の眼球10の前眼房13に向けて光ビーム28を照射する光照射系21と、眼球10の前眼房13を通過した光ビーム28を受光する受光器35の受光面35aを有する受光系22と、眼球10と光照射系21との間に眼球10の前眼房13を通過した光ビーム28の少なくとも一部を受光可能に設けられ、光ビーム28の入射位置が測定可能な受光器51の受光面51aを有する入射状態測定系23と、を備える。【選択図】図1