method and device for the subjective measurement of the aberration of the human eye

摘要

A method and equipment for measuring the subjective astigmation of human eyes features that three optical pathes for tracking light beam, measuring light trace and monitoring pupil are included. The position where tracking light comes in pupil is controlled by the array light source conjugated with pupil plane. The light trace register is performed by the marker on the display screen conjugated with eyeground. Its advantages include short light path, high light intensity, simple structure, high precision and stability, and low cost.