Cone-Rod Dystrophy 20, also known as cord20, is related to retinitis pigmentosa 1 and cone-rod dystrophy 18. An important gene associated with Cone-Rod Dystrophy 20 is POC1B (POC1 Centriolar Protein B), and among its related pathways/superpathways is Ciliopathies. Affiliated tissues include retina and bone, and related phenotypes are nystagmus and reduced visual acuity