Colour blindness is not a form of blindness but a deficiency the way one sees the colour. With this disorder, one feels difficulty in distinguishing certain colors such as blue and yellow or red and green. The disorder is inherited condition males are more affected than females.
According to the prevention of blindness America, an estimated 8 percent of males and less than 1 percent of females have color vision problems. We have three primary colours of spectrum red green and blue usually there is absence of 1 or 2 primary colours of spectrum red-green deficiency is more common blue yellow deficiencies affects males and females equally the colour vision is tested by Issachar isochromatic chart Nigels anomaloscope Wool test Lantern test People who are colour blind may not be allowed for certain professions like Navigation Pilots Chemical engineering Railway drivers Colour blindness…
