%0 Journal Article
%T Development and Validation of a Practical Color Vision Screening Method Using Common Materials Color
%A Angelea Perez
%J Open Access Library Journal
%V 13
%N 5
%P 1-17
%@ 2333-9721
%D 2026
%I Open Access Library
%R 10.4236/oalib.1115257
%X Purpose: Color Vision Deficiency (CVD) can interfere with educational performance and occupational participation; however, efficient school-based screening tools remain limited. This study evaluated four low-cost color vision screening tests against the Hardy-Rand-Rittler (HRR) Pseudoisochromatic Plates for detecting red-green CVD. Methods: Forty-nine adults (35 normal, 14 CVD; 18 - 59 years) completed HRR plates, crayon, color-board, paint-chip classification, and a psychophysical red-increment discrimination task. Results: Crayon and color-board tests showed poor reliability due to color desaturation, with overlapping error rates between normal and mild CVD groups. Paint-chip classification improved normal performance but failed to separate mild CVD. In contrast, the red-increment test differentiated CVD from normal vision. At the smallest increment, CVD participants performed near chance (0.28 ¡À 0.21), whereas normal participants remained above chance (0.68 ¡À 0.29). ROC analysis demonstrated discrimination (AUC = 0.862 (95% CI: 0.74 - 0.98)), improving with a compound classifier (AUC = 0.906 (95% CI: 0.80 - 0.99)). Conclusions: Low-cost color materials lack control; red-increment discrimination offers screening.<br />
%K Color Vision Deficiency
%K Screening
%K Psychophysics
%K Red-Green Deficiency
%K Pseudoisochromatic Plates
%K Educational Assessment
%U http://www.oalib.com/paper/6894126