Fixation instability during binocular viewing in children following dense unilateral cataract extraction

Previous research has focused on the qualitative aspects of fixation instability in children with deprivation amblyopia following dense unilateral cataract extraction, such as the presence of fusion maldevelopment nystagmus (FMNS). Here, we quantify fixation instability and vergence instability (unstable eye alignment) using the bivariate contour ellipse area (BCEA; log deg2) during binocular viewing in children following cataract extraction.