RP1 and Macular dystrophy: The RP1 c.5797C > T:p.(Arg1933*) variant is relatively common in Koreans and East Asians, and while it does not cause macular dystrophy on its own, it can lead to macular dystrophy when occurring in conjunction with Alu insertion in RP1 exon 4 (Nikopoulos et al. 2019).