Table 9.

Vergence Bivariate Contour Ellipse Area During Dichoptic Viewing Across the Four Groups

Groups	FE Contrast 100%	FE Contrast 50%	FE Contrast 25%	FE Contrast 10%
Group 0	0.41 ± 0.27	0.34 ± 0.28	0.47 ± 0.35	0.45 ± 0.49
Group 1	0.34 ± 0.53	0.39 ± 0.54	0.50 ± 0.48	0.43 ± 0.43
Group 2	0.65 ± 0.66	0.78 ± 0.42	0.89 ± 0.42	0.93 ± 0.52
Group 3	0.58 ± 0.43	0.43 ± 0.23	0.72 ± 0.46	0.73 ± 0.36

FE = Fellow eye contrast varied at 100%, 50%, 25%, and 10% while amblyopic eye contrast was at 100% for all dichoptic viewing trials.

Group 1 = anisometropic amblyopia, group 2 = mixed/strabismic amblyopia without fusion maldevelopment nystagmus, group 3 = mixed/strabismic amblyopia with fusion maldevelopment nystagmus. The values are Log vergence BCEA 95% (log 10[vergence BCEA (deg²)]).