Visual Psychophysics and Physiological Optics Automated Measurement of Resolution Acuity in Infants Using Remote Eye-Tracking

Automated measurement of resolution acuity in infants using remote eye-tracking. Invest Ophthalmol Vis Sci. 2014;55:8102–8110. DOI:10.1167/ iovs.14-15108 PURPOSE. To validate a novel, automated test of infant resolution acuity based on remote eye-tracking. METHODS. Infants aged 2 to 12 months were tested binocularly using a new adaptive computerized test of infant vision using eye tracking (ACTIVE), and Keeler infant acuity cards (KIAC). The ACTIVE test ran automatically, using remote eye-tracking to assess whether the infant fixated a black-and-white grating of variable spatial frequency. Test-retest reliability was assessed by performing each test twice. Accuracy was assessed by comparing acuity measures across tests and with established age-norms, and by comparing low-contrast acuity estimates in adults with data reported previously. RESULTS. All infants completed the ACTIVE test at least once. Median test duration was 10