A Study on Prevalence of Colour Vision Defects and Correlation with Sex, Visual Acuity and Blood Groups of the Study Group

Inherited color blindness is a lifelong challenge. While it may limit prospects for certain jobs, most peoplefind ways to adapt to the condition. Colour vision defect is usually for red-green colour and it is X-linkedrecessive trait. It is mainly homozygous that develop colour vision defects. Female heterozygous usuallyhave normal vision. Colour vision defects also have a strong genetic component , especially if both parentshave 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 whenchildren are learning their colours and goes undetected because as they grow they learn to associate specificcolours with certain objects.For example, they come to know that grass is green, so they call the colour theysee green. If symptoms are very mild, a person may not realize that they don’t see certain colours.