Table 1.

Summary of contrast sensitivity.

	Stimulus contrast (%)
Genotype	1.5	6.0	12	25	50	100
	Normalized VEP magnitude (%)
Ctrl	10.8 ± 3.2	28.6 ± 4.2	47.0 ± 4.1	74.6 ± 6.0	99.4 ± 2.6	100
Tg	17.5 ± 5.9	30.4 ± 9.7	56.4 ± 14.5	71.0 ± 7.4	97.0 ± 11.3	100
p-value	0.367	0.872	0.556	0.717	0.846	N/A