PROBLEM TO BE SOLVED: To enable subjective measurement under a natural state to be performed easily and with a high degree of precision.SOLUTION: A subjective optometer includes a light projecting optical system having a right eye light projecting optical system and a left eye light projecting optical system provided in a right and left pair for irradiating a target light flux onto an eye to be examined, and projecting the target onto the eye to be examined, and a correction optical system disposed in an optical path of the light projecting optical system for changing the optical characteristics of the target light flux, and measures the optical characteristics of the eye to be examined subjectively. The subjective optometer includes control means that irradiates the target light flux from one light projecting optical system of the right eye light projecting optical system and the left eye light projecting optical system, projects a first target onto one eye to be examined of the right and left eyes to be examined, and irradiates the target light flux from the other light projecting optical system of the right eye light projecting optical system and the left eye light projecting optical system, projects a second target onto the other eye to be examined of the right and left eyes to be examined. The first target includes an examination target and a first background target while the second target includes a second background target with the same pattern as the first background target.SELECTED DRAWING: Figure 1【課題】容易に自然な状態下での自覚式測定を可能とし、精度よく測定を行う。【解決手段】左右一対に設けられた右眼用投光光学系と左眼用投光光学系を有し、視標光束を被検眼に向けて照射して視標を被検眼に投影する投光光学系と、投光光学系の光路中に配置され、視標光束の光学特性を変化する矯正光学系と、を有し、被検眼の光学特性を自覚的に測定する自覚式検眼装置であって、右眼用投光光学系又は左眼用投光光学系の一方の投光光学系から視標光束を照射し、左右の被検眼の一方の被検眼に第１視標を投影するとともに、右眼用投光光学系又は左眼用投光光学系の他方の投光光学系から視標光束を照射し、左右の被検眼の他方の被検眼に第２視標を投影する制御手段と、を備え、第１視標は、検査視標及び第１背景視標を含み、第２視標は、第１背景視標と同一パターンの第２背景視標を含む。【選択図】図１
