Choroidal dystrophy is an eye disorder involving the choroid , a layer of blood vessels between the sclera and retina .
Choroidal dystrophy is usually due to an abnormal gene, which is passed down through families. It most often affects males, starting in childhood.
The first symptoms are peripheral vision loss and vision loss at night. An eye surgeon who specializes in the back of the eye (retina specialist) can diagnose this disorder.
The following tests may be needed to diagnose the condition:
Grover S, Fishman GA. Choroidal dystrophies. In: Yanoff M, Duker JS, eds. . 3rd ed. St. Louis, Mo: Mosby Elsevier; 2008:chap 6.
External and internal eye anatomy