Table 2.

Mean LogMAR VA for each illuminance level tested

Illuminance level (Lx)	VA right eye Mean (SD)	VA left eye Mean (SD)
50	0.32 (0.31)	0.30 (0.27)
75	0.29 (0.30)	0.29 (0.27)
100	0.30 (0.32)	0.28 (0.26)
150	0.27 (0.30)	0.23 (0.27)
200	0.24 (0.28)	0.22 (0.30)
300	0.22 (0.31)	0.21 (0.28)
500	0.22 (0.28)	0.13 (0.25)
750	0.16 (0.27)	0.17 (0.25)
1000	0.18 (0.31)	0.13 (0.23)
1500	0.16 (0.27)	0.12 (0.21)
2000	0.14 (0.24)	0.08 (0.20)
3000	0.13 (0.26)	0.06 (0.21)
4000	0.11 (0.23)	0.10 (0.21)
6000	0.08 (0.21)	0.07 (0.21)
8000	0.06 (0.24)	0.04 (0.17)