Table 1

Conventional electrophysiology findings

	Normal range	Right	Left
	>1.9	1.7	1.75
EOG	equivocal >1.7<1.9
VEP (ms):
60′ check	85–109	104	95
15′ check	89–116	105	109
ERG (μV):
rod response	72–367	109	113
maximal response	241–709	253	222
oscillatory potentials	36–112	8	7
cone response	68–222	75	57
30 Hz flicker	25–150	57	68