Table 1

ERG amplitudes (μV) (reduced amplitudes are underlined)

Parameter		Median		Lower limit		Right eye				Left eye
Parameter		Median		Lower limit		1996	1997			1996	1997
Dark adapted:
Rod:
b	445	327	122	0		387	442
Rod-cone:
a	464	376	504	415		505	494
b	742	600	453	331		744	744
Light adapted:
Single cone:
a	103	72	85	100		93	105
b	246	200	149	127		271	189
Cone flicker:	241	215	99	0		265	200
ON response:	35	28	19	12		49	45
OFF response:	32	20	29	33		42	38

a=a-wave, b=b-wave.