PROBLEM TO BE SOLVED: To provide a mechanism capable of acquiring reliable inherent characteristic information on an eye to be examined.SOLUTION: An ophthalmologic apparatus for examining an eye to be examined by irradiating light onto the eye to be examined includes: an image pickup device for picking up an image including a ring image based on a ring luminous flux from the eye to be examined and a system control unit for approximating the ring image included in the image acquired by the image pickup device to calculate a first ellipse 701, extracting a predetermined region 702 determined in a range within a predetermined distance from the first ellipse 701 in the image from the image acquired by the image pickup device, approximating a ring image included in the predetermined region 702 to calculate a second ellipse 703, and acquiring inherent characteristic information on the eye to be examined using the second ellipse 703.SELECTED DRAWING: Figure 7COPYRIGHT: (C)2017,JPO&INPIT【課題】信頼度の高い被検眼の固有特性情報を取得することが可能な仕組みを提供する。【解決手段】被検眼に光を照射して被検眼の検査を行う眼科装置において、被検眼からのリング光束に基づくリング像を含む画像を撮像する撮像素子と、撮像素子で得られた画像に含まれるリング像を近似して第1の楕円701を算出し、撮像素子で得られた画像の中から、当該画像において第1の楕円701から所定距離以内の範囲で定まる所定領域702を抽出し、当該所定領域702に含まれるリング像を近似して第2の楕円703を算出し、当該第2の楕円703を用いて被検眼の固有特性情報を取得するシステム制御部を備える。【選択図】図7
