Cone dystrophy with supernormal rod response is strictly associated with mutations in KCNV2 .
B-DiseaseOrPhenotypicFeature I-DiseaseOrPhenotypicFeature I-DiseaseOrPhenotypicFeature I-DiseaseOrPhenotypicFeature I-DiseaseOrPhenotypicFeature I-DiseaseOrPhenotypicFeature O O O O O O B-GeneOrGeneProduct O