Show pagesourceOld revisionsBacklinksBack to top Share via Share via... Twitter LinkedIn Facebook Pinterest Telegram WhatsApp Yammer Reddit TeamsRecent ChangesSend via e-MailPrintPermalink × Table of Contents Main Features Distinguishing Features Differential Dx Pathogenesis Treatment Resources This is an old revision of the document! Achromatopsia Main Features Reduced vision due to lack of functioning cones Nystagmus Distinguishing Features Photophobia at birth or early infancy Differential Dx Pathogenesis Treatment Resources inherited retinal disease, retina inherited retinal disease retina