| 摘要 |
PROBLEM TO BE SOLVED: To provide a subjective optometer, and an optometry system, capable of reflecting astigmatism examination in a prescription of glasses or the like.SOLUTION: A subjective optometer includes: a spherical diopter power generation part including lenses and generating a spherical diopter power; an astigmatic element generation part disposed on an optical system and having two cylindrical lenses; and a control part. The control part calculates composite correction values composed according to a cross-cylinder diopter power and cross-cylinder axial angles 45°, 90°, 135°, 180° for astigmatism examination to correction values in a state that the lenses are disposed in correction positions based on the correction values of the spherical diopter power, an astigmatic diopter power, and an astigmatic axis (S20), disposes the lenses in composite correction positions based on the composite correction values by controlling the spherical diopter power generation part and the astigmatic element generation part (S30), receives an optometry result (S40), and calculates new correction values in which the correction values are corrected (S50). |
