Table 2.

Pinhole experiment subjects' information.

Visual acuity
High contrast 63 cm (median [min, max])		Low contrast 63 cm (median [min, max])		Contrast sensitivity (median [min max])		Years of education (median [min max])
Right eye	Left eye	Right eye	Left eye	Right eye	Left eye
107 [89, 109]	105.5 [98, 112]	95 [88, 99]	93 [89, 99]	1.95 [1.95, 2.10]	1.95 [1.95, 2.10]	19 [15, 25]