Figure 1, A, shows the visual field constriction (Goldmann kinetic perimetry). The results of the static perimetry were comparable (Figure 1, C). Findings for visual acuity (20/20 OU), motility, eye position, anterior segments, and fundus were completely normal. Color vision tested by the desaturated Panel D-15 test, absolute rod threshold after 30 minutes of dark adaptation (Hartinger dark adaptometer, Carl Zeiss, Jena, Germany), and pattern evoked visual potentials were also unremarkable. Baseline and light peak of the electro-oculogram (ISCEV standard) also rendered normal results (Arden ratio, 2.1 OD, 1.9 OS).