Figure 1. Pedigree and genotype. A: Schematic pedigree for Family A with the PRPF31 (p.IVS6+1G>T) mutation. B: Schematic pedigree for Family B with the RHO135 (p.R135W) mutation. Circles indicate females. Squares indicate men. Filled symbols indicate affected individuals. Red arrow = proband. () Genotype is shown in parentheses after pedigree ID: (+) = mutation identified, (-) = no mutation identified, * Assessed with ERG, ● Mutation in GUCY2D (p.P701S).