ABCA4 and Stargardt disease: Globally, the five most common IRD genes identified by a systemic review published through December 2022 were ABCA4 (12.9%), USH2A (6.8%), RPGR (2.7%), EYS (2.1%), and RHO (1.9%), thus autosomal recessive (AR) Stargardt disease, non-syndromic retinitis pigmentosa, and syndromic Usher syndrome predominate [4].