Of note, a frameshift RP9 variant has also been reported among individuals with hereditary retinal dystrophy (c.664delT; p.Ter222Aspfs; rs553265417); however, its appreciable European (non-Finnish) allele frequency in gnomAD (0.01083) suggests that it is likely benign.16 Given the uncertain clinical significance of homozygous or heterozygous loss of RP9, continued ophthalmologic evaluation of the proband and parents is planned. Here, RP9 is linked to Retinal dystrophy.