Another study from Southern India screened twelve families (eleven with LCA and one with ARRP) for homozygosity using SNP arrays and detected mutations in eleven families (Srilekha et al., 2015)- genes with pathogenic mutations in these patients were Aryl Hydrocarbon Interacting Protein-Like 1 (AIPL1), Retinal Pigment Epithelial 65 kDa Protein gene (RPE65), Guanylate Cyclase 2D (GUCY2D), Crumbs Homolog 1 (CRB1), Retinol Dehydrogenase 12 (RDH12), IQ Calmodulin-binding Motif-containing Protein 1 (IQCB1), Spermatogenesis Associated Protein 7 (SPATA7) and Mer-Tyrosine Kinase (MERTK). Here, RDH12 is linked to Leber congenital amaurosis.