Subjective optometric device for examining patient`s eye`s refractive power, has correcting optical system correcting corrected and prescribed values, and microcomputer section computing corrected prescribed value based on correction result

摘要

The device has distant and close vision testing unit obtaining respective best corrected value for distant and additional refracting power of a patient eye. A microcomputer section (30) computes two prescribed values based on respective corrected values. A correcting optical system corrects the corrected values and one of the prescribed values. The section computes a corrected prescribed value on the basis of the correction result.