NMNAT1 and Leber congenital amaurosis: 2008), CEP290 and GUCY2D were the most predominant causes of LCA, representing over one‐third of this group. At the time of analysis, three pedigrees (10%) remain unresolved, with NMNAT1 (identified in three pedigrees), AIPL1, CRB1, RPE65, RPGRIP1, TULP1, LCA5, RDH12, and SPATA7 accounting for the remaining pedigrees.