To evaluate white sphere kinetic perimetry (WSKP) as a test of the peripheral visual field in young children with a history of epilepsy and treatment with Vigabatrin (VGB). VGB is an antiepileptic medication that is associated with visual field constriction.
Thirty-one VGB patients and 10 control subjects, median age 6 years, were recruited. Visual field extent on the major oblique meridia was tested with a 6° white sphere and WSKP, a method used by Quinn et al. to study field extent in children with retinopathy of prematurity. The same meridia were tested using Goldmann kinetic perimetry (GKP; 1.7° target) in those who were capable. Monocular and binocular tests were conducted. Visual field extent for WSKP and GKP were compared in VGB patients and control subjects.