Ocular abnormalities other than microcoria were found in two patients with PS with onset of nephrotic proteinuria beyond 1 year of age and focal segmental glomerulosclerosis who had homozygous or compound heterozygous LAMB2 truncated variants (Matejas et al., 2006, 2010). This evidence concerns the gene LAMB2 and focal segmental glomerulosclerosis.