Color blindness isn't a type of blindness in the slightest degree, however a deficiency within the approach you see color. With this vision problem, you have got problem characteristic sure colours, like blue and yellow or red and green.
Nearly all people who ar “color blind” will see colours however have problem characteristic between sure colours.
Not all those that ar color blind have bother with a similar colours – most cannot distinguish between reds and greens.
some cannot separate blues from yellows; and a very little cluster have a condition known as colour vision deficiency that solely allows them to check black and white.