Patent ID: 7597445
Filing Date: 2009-10-06
Classification: A61B,G16H,G16Z

Abstract:
1. A recording medium having a program for optometry, which is used for a control device, the program comprising: a first unit to measure an amount of heterophoria of eyes of an examinee to be examined and determine whether exophoria or esophoria exists in a horizontal heterophoria examination; a second unit to calculate a Sheard criterion value based on the measured amount of heterophoria of the eyes of the examinee and cause the display of an operating method to allow the examinee to implement a Sheard criterion identifying examination by use of the calculated Sheard criterion value on a display device; a third unit to allow the examinee a fourth unit to calculate a prism amount for prescriptions based on the heterophoria amount and the fusional convergence reserve of the eye in the case where the exophoria exists or the fusional divergence reserve of the eyes in the case where the esophoria exists, if the fusional convergence or divergence reserve of the eyes does not satisfy the Sheard criterion.