A duplication on chromosome 16q12 affecting the IRXB gene cluster is associated with autosomal dominant cone dystrophy with early tritanopic color vision defect.
Kohl S, Llavona P, Sauer A, Reuter P, Weisschuh N, Kempf M, Dehmelt FA, Arrenberg AB, Sliesoraityte I, Zrenner E, et al. Hum Mol Genet. 2021 Jun 17; 30(13):1218-1229.