An overview

Color blindness is basically an inaccurate term to provide a description of lack of perceptual sensitivity for various colors, a more precise term is rather Color Vision Deficiency (CVD). Color blindness is basically a color vision deficiency in which there are certain colors, which cannot be distinguished. This is generally an inherited eye condition among which red and green color blindness is most common, or it may be caused by retina or optic nerve disease and is about 99%. Read more »