Automated clinical visual acuity testing.
We developed a method for testing visual acuity using a general-purpose microcomputer which displays visual acuity targets on a television monitor, controls a staircase psychophysical testing procedure, and provides a printed record of mean visual acuity and standard deviation. This automated procedure can be used to increase the precision of clinical visual acuity testing and to determine if changes in a patient's visual acuity are statistically significant.
D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D006801:Humans; D008838:Microcomputers; D008875:Middle Aged; D013690:Television; D014786:Vision Disorders / Q000175:diagnosis*; D014787:Vision Tests / Q000295:instrumentation / Q000379:methods*; D014792:Visual Acuity