What is color blindness? Color blindness is not actually a type of blindness but it is a deficiency in the way you see colours . With this vision problem you face difficulties in dustenguish between two different colours. Colour blindness is also known as color vision deficiency .Approximately every 1 in 12 man and 1 in 200 women is affected by it. So there is a high probability that someone who you know a neighbour or a co-student is colour blind. The colour blindness as a vision deficiency was discovered by English chemist John Dalton after he realized that he was colour blind himself. In 1798 he published the first scientific paper related to this subject which was called Extraordinary facts relating to vision of color. Most partially blind individuals can see things as obviously as other individuals yet they can't completely 'see' red, green or blue light. There are diverse kinds of visual impairment and there are amazingly uncommon situat...