STGD1 is one of the most common autosomal recessive inherited retinal disorders caused by a mutation in the ATP Binding Cassette Subfamily A Member 4 (ABCA4) gene, whereas, mutations in elongation of very-long-chain fatty acids 4 (ELOVL4), prominin 1 (PROM1) genes are responsible for the STGD3 and STGD4 phenotype, respectively [7, 8]. The gene discussed is PROM1; the disease is retinal disorder.