_:vb50937614 . _:vb50937614 . _:vb50937614 "url:http://rarediseases.org/rare-disease-information/rare-diseases/byID/847/viewAbstract"^^ . _:vb50937614 . _:vb50937614 "url:http://en.wikipedia.org/wiki/Cone_dystrophy"^^ . _:vb50937614 . _:vb50937614 . _:vb50937614 . _:vb50937614 . _:vb50937614 "url:http://www.ncbi.nlm.nih.gov/books/NBK1418/"^^ . _:vb50937614 "A retinal disease that is characterized by the loss of cone cells, the photoreceptors responsible for both central and color vision."^^ .