What is the reason of Colour blindness?

Colour blindness is a usually a genetic (hereditary) condition (you are born with it). Red/green and blue colour blindness is usually passed down from your parents. The gene which is responsible for the condition is carried on the X chromosome and this is the reason why many more men are affected than women. read more

WebMD explains color blindness, a condition in which a person -- males, primarily -- cannot distinguish colors. read more

However, color blindness is not always inherited. Other causes of color blindness can also be caused from a variety of vision problems, including: Macular degeneration, diabetic retinopathy, glaucoma, or cataracts; Injury to the eye; Aging; There are a variety of tests one can take to determine if they are color blind. read more