A Study on Prevalence of Colour Vision Defects and Correlation with Sex, Visual Acuity and Blood Groups of the Study Group
Keywords:Partial colour blindness, Mutations in OPN1LW, OPN1MW,Deuteranopia , Protanopia, Photopigment of Retina.
Inherited color blindness is a lifelong challenge. While it may limit prospects for certain jobs, most people
find ways to adapt to the condition. Colour vision defect is usually for red-green colour and it is X-linked
recessive trait. It is mainly homozygous that develop colour vision defects. Female heterozygous usually
have normal vision. Colour vision defects also have a strong genetic component , especially if both parents
have colour vision defects , and people with a particular blood group , and very myopic or hypermetropic
, there is a good chance their child will be same. Color blindness is often apparent at a young age when
children are learning their colours and goes undetected because as they grow they learn to associate specific
colours with certain objects.For example, they come to know that grass is green, so they call the colour they
see green. If symptoms are very mild, a person may not realize that they don’t see certain colours.
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