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 There are two main subtypes of cone dystrophy, called stationary cone dystrophy and progressive cone dystrophy. The age when symptoms begin, the type and severity of symptoms, and the progression of symptoms are all very different between individuals, even between people with the same type of cone dystrophy. Mutations in many genes have been found to cause cone dystrophy, and the condition can be inherited in an autosomal dominant, autosomal recessive, or x-linked manner.Cone dystrophy is a general term for a group of rare eye disorders that affect the cone cells of the retina. Cone cells allow a person to see color and fine detail, and they work best in bright light. The cone dystrophies can cause a variety of symptoms such as decreased visual clarity when looking straight ahead, a reduced ability to see colors, and an increased sensitivity to light.
Last updated: 7/1/2013
- Cone Dystrophy. NORD. 2010; http://www.rarediseases.org/rare-disease-information/rare-diseases/byID/847/viewAbstract. Accessed 6/19/2013.
- Simunovic, M.P., Moore, A.T. The cone dystrophies. Royal College of Ophthalmologists. 1998; http://www.nature.com/eye/journal/v12/n3b/pdf/eye1998145a.pdf. Accessed 6/19/2013.
Your Questions Answeredby the Genetic and Rare Diseases Information Center
Please contact us with your questions about Cone dystrophy. We will answer your question and update these pages with new resources and information.
- The National Organization of Rare Diseases (NORD) is a federation of more than 130 nonprofit voluntary health organizations serving people with rare disorders. Click on the link to view information on this topic.
- University of Michigan Kellogg Eye Center has a booklet on "Understanding Cone Dystrophy" for patients and their families.
- Orphanet is a European reference portal for information on rare diseases and orphan drugs. Access to this database is free of charge.
- PubMed is a searchable database of medical literature and lists journal articles that discuss Cone dystrophy. Click on the link to view a sample search on this topic.