PROBLEM TO BE SOLVED: To provide an eye characteristic measurement device capable of performing cornea surface curvature measurement by removing influence of a ghost caused by an intraocular lens (IOL), even when the intraocular lens is inserted in a subject eye.SOLUTION: An eye characteristic measurement device includes: a ring light source for projecting a light flux to a cornea of a subject eye from the outside of the center axis of a light path an optical system for receiving a cornea reflection light flux originated by the ring light source cornea surface curvature calculation means for calculating a cornea surface curvature on the basis of a cornea reflection image received by the optical system a visible light projection unit for projecting visible light to the subject eye and a visible light amount control unit for changing a light amount of the visible light projection unit. When a subject eye is an IOL eye, the cornea surface curvature calculation means receives a cornea reflection light flux for calculating a cornea surface curvature after the visible light amount control unit increases a light amount of the visible light projection unit more than that in the case of measuring a subject eye except an IOL eye.COPYRIGHT: (C)2015,JPO&INPIT【課題】被検眼に眼内レンズが挿入されている場合であっても、眼内レンズに起因するゴーストの影響を除去して角膜表面曲率測定を行うことができる眼特性測定装置を提供する。【解決手段】眼特性測定装置は、被検眼の角膜に光路の中心軸の外側から光束を投影するリング光源と、リング光源による角膜反射光束を受光する光学系と、この光学系により受光された角膜反射像に基づいて角膜表面曲率を算出する角膜表面曲率算出手段と、被検眼に可視光を投影する可視光投影部と、可視光投影部の光量を変化させる可視光光量制御部とを有し、被検眼がIOL眼である場合には、前記可視光光量制御手段が、可視光投影部の光量を、IOL眼ではない被検眼の測定時よりも上昇させた後、角膜表面曲率測定部が角膜表面曲率算出用の角膜反射光束を受光する。【選択図】図7
