Table 2.
Based on a scale of 0 – 4 on which 0 = no difficulty and 4 = great difficulty. Indicated differences are based on Kruskal-Wallis post hoc analysis.
b Glaucoma: tasks C and I were more difficult than D, E, and F (p < 0.001).
c Retinitis pigmentosa: tasks C, H, and I were more difficult than D, E, and F (p < 0.001).
d Diabetic retinopathy: tasks A, B, C, G, and I were more difficult than D, E, and F (p < 0.001).
e Cataracts: tasks A, B, C, G, and I were more difficult than E or F (p < 0.001).
f Macular degeneration: tasks A, B, C, G, and I were more difficult than D (p < 0.015).