[Problem] To be able to obtain good results with low stress. [Solution] A first indicator is projected on the cornea. A first indicator image is captured. A second indicator for corneal measurement, which differs from the first indicator, is projected on the cornea. A second indicator image is captured. The amount of the second projected light is adjusted on the basis of the first indicator image. The cornea of the eye is measured on the basis of the second indicator image. Provided are: a first projection optical system (1) that projects the first indicator on the cornea a first imaging optical system (20) that captures the reflected image of the first indicator projected on the cornea a second projection optical system (10) that projects a second indicator, which differs from the first indicator, on the cornea to measure the corneal morphology a second imaging optical system (20) that captures the reflected image of the second indicator projected on the cornea and a corneal morphology-measuring means (70) for adjusting the amount of light projected by the second projection optical system on the basis of the reflected image of the first indicator acquired by the first imaging optical system and measuring the corneal morphology of the subjects eye on the basis of the reflected image of the second indicator captured by the second imaging optical system.[Problème] Pouvoir obtenir de bons résultats avec un stress faible. [Solution] Selon la présente invention, un premier indicateur est projeté sur la cornée. Une image de premier indicateur est capturée. Un deuxième indicateur pour mesure cornéenne, qui diffère du premier indicateur, est projeté sur la cornée. Une image de deuxième indicateur est capturée. La quantité de la deuxième lumière projetée est ajustée sur la base de limage de premier indicateur. La cornée de lœil est mesurée sur la base de limage de deuxième indicateur. La présente invention concerne : un premier système optique de projection (1) qui projette
