OPTOMETER AND OPTOMETRY PROGRAM

To complete measurement smoothly without taking time in a photorefraction type optometer.SOLUTION: An optometer for objectively measuring eye refractive power of an eye to be examined by a photorefraction method includes: a light projection optical system having a plurality of measurement light sources arranged in a meridian direction with an optical axis center as a reference for irradiating the ocular fundus of the eye to be examined with measurement light emitted from the plurality of measurement light sources; a light reception optical system for detecting, by a detector, reflection light of the measurement light reflected by the ocular fundus of the eye to be examined; light source control means for sequentially lighting the plurality of measurement light sources; and control means for acquiring first eye refractive power of the eye to be examined on the basis of a result of the detection of the reflection light of the plurality of measurement light sources which have been sequentially lighted. The control means acquires second eye refractive power of the eye to be examined on the basis of the reflection light of the measurement light by a predetermined measurement light source of the plurality of measurement light sources, and outputs the second eye refractive power as the eye refractive power of the eye to be examined.SELECTED DRAWING: Figure 1 【課題】 フォトレフラクション方式の検眼装置において、時間をかけることなく、スムーズに測定を完了させる。【解決手段】 フォトレフラクション方式にて被検眼の眼屈折力を他覚的に測定する検眼装置であって、光軸中心を基準として経線方向に配置された複数の測定光源を有し、複数の測定光源から出射された測定光を被検眼の眼底に照射する投光光学系と、被検眼の眼底によって反射された測定光の反射光を検出器で検出する受光光学系と、複数の測定光源を順次に点灯する光源制御手段と、順次点灯された複数の測定光源の反射光の検出結果に基づいて被検眼の第１眼屈折力を取得する制御手段と、を備え、制御手段は、複数の測定光源の内、所定の測定光源による測定光の反射光に基づいて、被検眼の第２眼屈折力を取得し、第２眼屈折力を、被検眼の眼屈折力として出力する。【選択図】 図１