Search results
Results from the WOW.Com Content Network
Achromatopsia, also known as rod monochromacy, is a medical syndrome that exhibits symptoms relating to five conditions, most notably monochromacy.Historically, the name referred to monochromacy in general, but now typically refers only to an autosomal recessive congenital color vision condition.
Blue cone monochromacy (BCM) is an inherited eye disease that causes severe color blindness, poor visual acuity, nystagmus, hemeralopia, and photophobia due to the absence of functional red (L) and green (M) cone photoreceptor cells in the retina. BCM is a recessive X-linked disease and almost exclusively affects XY karyotypes.
The nystagmus and photo-aversion usually are present during the first months of life, and the prevalence of the disease is estimated to be 1 in 30,000 worldwide. [3] Since patients with RM have no cone function, they lack photopic vision, relying entirely on their rods and scotopic vision, [3] which is necessarily monochromatic. They therefore ...
The angiography test will usually show one or more fluorescent spots with fluid leakage. In 10%-15% of the cases these will appear in a classic smokestack shape. [citation needed] Differential diagnosis should be immediately performed to rule out retinal detachment, which is a medical emergency. A clinical record should be taken to keep a ...
Choroideremia (/ k ɒ ˌ r ɔɪ d ɪ ˈ r iː m i ə /; CHM) is a rare, X-linked recessive form of hereditary retinal degeneration that affects roughly 1 in 50,000 males. The disease causes a gradual loss of vision, starting with childhood night blindness, followed by peripheral vision loss and progressing to loss of central vision later in life.
Birdshot chorioretinopathy is thought to be an autoimmune disease. The disease has strong association with the human leukocyte antigen haplotype (HLA)-A29, which is the strongest association between a disease and HLA class I documented (>99% of patients are HLA-A29 positive by molecular testing and HLA-A29-negative cases are controversial [1]).
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
Nyctalopia; impaired night vision. Symptoms are not consistent with typical migraine aura. Symptoms are not better explained by another disorder (ophthalmological, drug abuse). Normal ophthalmology tests (best-corrected visual acuity, dilated fundus examination, visual field, and electroretinogram); not caused by previous intake of psychotropic ...