Patent ID: 7360894

Claim:
An ophthalmological apparatus comprising: a first illumination optical system for projecting a point light source on the retina of an eye under measurement; a first light-receiving optical system for receiving light reflected from the retina of the eye under measurement through a Hartmann plate; a first light-receiving section for converting the received reflected light sent from the first light-receiving optical system into an electrical signal; an aberration measurement section for obtaining the aberration of the eye under measurement from the output of the first light-receiving section; a components measurement section for obtaining components other than the aberration component, based on a point light-source image caused by each Hartmann plate, from the output of the first light-receiving section; a scattering-level calculation section for obtaining a scattering level based on the aberration of the eye under measurement obtained by the aberration measurement section and the components obtained by the component measurement section; a data generating section for generating, (1) first data indicating how the eye under measurement sees in a case that a contact lens is worn based on the aberration obtained by the aberration measurement section at a first measurement in which the contact lens is worn, (2) second data indicating how the eye under measurement sees in a case that the contact lens is worn based on the aberration obtained by the aberration measurement section and the scattering level obtained by the scatting-level calculation section, at the first measurement in which the contact lens is worn, (3) third data indicating how the eye under measurement sees in a case that a contact lens is not worn based on the aberration obtained by the aberration measurement section at a second measurement in which the contact lens is not worn, and (4) fourth data indicating how the eye under measurement sees in a case that a contact lens is not worn based on the aberration obtained by the aberration measurement section and the scattering level obtained by the scattering-level calculation section at the second measurement in which the contact lens is not worn; and a display section for displaying the first data to the fourth data indicating how the eye under measurement sees, generated by the data generating section.