Patent ID: 8905544
Filing Date: 2014-12-09
Classification: A61B,A61F

Abstract:
1. An ophthalmic apparatus for guiding positioning an intraocular lens for astigmatism correction, comprising: an obtaining unit for obtaining an anterior segment image of a patient's eye and an astigmatic axis of a patient's cornea; and a display control unit for superimposing and displaying, on the anterior segment image of the patient's eye, a meridian based on the astigmatic axis of the cornea and serving as a reference for positioning a toric intraocular lens, and a line passing through a feature point included in the anterior segment image of the patient's eye, and for displaying the meridian and the line on a monitor such that an angle of the meridian relative to the line is recognizable an anterior segment imaging optical system for obtaining an anterior segment image of the patient's eye; and an analyzing unit for measuring a cornea shape distribution of the patient's eye and the astigmatic axis of the cornea by analyzing the anterior segment image including a ring image, the anterior segment image being obtained by the anterior segment imaging optical system, wherein the display control unit superimposes and displays, on the anterior segment image of the patient's eye, a meridian based on the astigmatic axis of the cornea obtained by the analyzing unit and serving as a reference for positioning the toric intraocular lens, and a line passing through a feature point included in the anterior segment image of the patient's eye obtained by the anterior segment imaging optical system, and displays the meridian and the line on the monitor such that an angle of the meridian relative to the line is recognizable.