Comparative electrophysiological responses in anisometropic and strabismic amblyopic children

Figures & data

Table 1 Demographics and clinical data

	Control	Strabismic		Anisometropic
		Amblyopic eye	Fellow eye	Amblyopic eye	Fellow eye
Visual acuity (logMAR)	0.0	0.44±0.3	0.01±0.0	0.48±0.2	0.02±0.0
Refractive errora (SE)	0.25±0.3	0.82±0.6	0.66±0.6	4.46±2.3	3.04±2.3
Age (years)	10.10±2.2	10.30±2.6		9.70±2.5
Sex (male/female)	15/4	10/9		10/8

Notes:

a None had cylinder >1.25. Data are presented as mean ± standard deviation.

Abbreviation: SE, spherical equivalent.

Table 2 Electrophysiological differences between controls, amblyopic eye and fellow eye

Groups, N=56
	Control, N=19	Strabismic, N=19		Anisometropic, N=18
		Amblyopic eye	Fellow eye	Amblyopic eye	Fellow eye
P100-PVEP latency (ms)	105.28±14.9	130.68±21.9	110.37±14.8	118.0±18.2	104.7±8.3
P100-PVEP amplitude (μV)	12.81±7.3	8.96±6.2	11.88±7.9	12.22±6.8	13.88±4.2
P50-PERG latency (ms)	49.40±7.0	59.12±15	45.88±5.0	57.26±12.7	47.8±7.4
P50-PERG amplitude (ms)	2.28±1.4	2.09±1.6	3.11±1.8	2.64±1.2	2.34±1.1
N95-PERG latency (ms)	92.61±15.6	124.81±39.4	104.45±24.7	104.8±1.7	95.59±16.9
N95-PERG amplitude (μV)	4.02±1.7	3.94±1.4	5.14±1.9	4.53±1.7	5.16±1.8

Note: Data are presented as mean ± standard deviation.

Abbreviations: PVEP, pattern visual evocated potential; PERG, pattern electroretinogram.