Development of an automated computerized visual acuity and stereoacuity test in children using an interactive video game

Abstract

Introduction: To evaluate the test-retest reliability and validity of the new automated computerized distance visual acuity and stereoacuity test for children, which uses an interactive video game. Methods: A total of 102 children aged between 3 and 7 years underwent the Snellen visual acuity test, the Distance Randot Stereotest, and the new automated computerized distance visual acuity and stereoacuity test. The test-retest reliability and validity of the automated computerized tests were assessed and compared to the Snellen visual acuity test and the Distance Randot Stereotest with frequency distributions of the differences, Bland–Altman plots, and Deming regression. Results: The automated computerized distance visual acuity test had high test-retest reliability (95% limits of agreement ± 0.18 logMAR, 90.0% of the differences within 0.2 logMAR) and acceptable validity as compared to the Snellen visual acuity chart (95% limits of agreement ± 0.27 logMAR, 81.3% of the differences within 0.2 logMAR). The automated computerized distance stereoacuity test had high test-retest reliability (95% limits of agreement ± 0.29 log arc second, 95.1% of the differences within 0.3 log arc second) and acceptable validity as compared to the Distance Randot Stereotest (95% limits of agreement ± 0.35 log arc second, 93.9% of the differences within 0.3l log arc second). Conclusions: The new automated computerized distance visual acuity and stereoacuity test, which uses an interactive video game, has good reliability and acceptable validity compared to the Snellen visual acuity chart and the Distance Randot Stereotest.