CRB1 and respiratory distress syndrome in premature infants: Upon funduscopic analysis of patients with IRDs caused by mutations in CRB1 gene, namely LCA type 8 (LCA8; 613835) and RP type 12 (RP12; 600105), additional specific features may be found, including preservation of para-arteriolar retinal pigment epithelium (PPRPE) and coats-like vasculopathy.