Table 1.

The mean and standard deviation of PRVEP before and after the treatment of panretinal photocoagulation (PRP)

Visual evoked potential components	Session	Study Group	P-value
P100 Amplitude (µv)	Pre	9.30±1.34	<0.001
	First	8.61±1.35	<0.001
	Second	8.09±1.44	<0.001
	Third	7.59±1.54	<0.001
1.5 months	8.05±1.37	<0.001
P100 Latency (ms)	Pre	108.40±6.45	<0.001
	First	111.24±5.82	<0.001
	Second	114.14±5.74	<0.001
	Third	117.87±6.42	<0.001
1.5 months	115.89±6.49	<0.001