Figure 3 of
Ebermann, Mol Vis 2007;
Figure 3. Visual field test results from study patients
A: II:2 at 26 years of age, B: II:3 at 21 years of age, and C: II:4 at 22 years of age (static perimetry). Visual field loss was more severe in the twin brothers than in their older brother. D: II:2: kinetic field (Goldmann target III 4e for the visual field border) for a 90 ° assessment. Surprisingly, nasal and temporal fields are more preserved in the older brother (II:2, A), compared to his monozygotic twin brothers (B andC), demonstrating the significant intrafamilial variability of the visual phenotype.