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Color blindness or color vision deficiency (CVD) is the decreased ability to see color or differences in color. [ 2 ] The severity of color blindness ranges from mostly unnoticeable to full absence of color perception. Color blindness is usually an inherited problem or variation in the functionality of one or more of the three classes of cone ...
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.
Cerebral achromatopsia. Cerebral achromatopsia is a type of color blindness caused by damage to the cerebral cortex of the brain, rather than abnormalities in the cells of the eye's retina. It is often confused with congenital achromatopsia but underlying physiological deficits of the disorders are completely distinct.
2-9% males; <1% females. Congenital red–green color blindness is an inherited condition that is the root cause of the majority of cases of color blindness. It has no significant symptoms aside from its minor to moderate effect on color vision. [ 1 ] It is caused by variation in the functionality of the red and/or green opsin proteins, which ...
These include issues around the governance of the therapy, whether treatment should be available only to those who can afford it, and whether the availability of treatment creates a stigma for those with color blindness. Given the large number of people with color blindness, there is also the question of whether color blindness is a disorder. [16]
Leber congenital amaurosis. Leber congenital amaurosis (LCA) is a rare inherited eye disease that appears at birth or in the first few months of life. [2] It affects about 1 in 40,000 newborns. [1] LCA was first described by Theodor Leber in the 19th century. [3][4] It should not be confused with Leber's hereditary optic neuropathy, which is a ...