can color blindness occur later in life
Red-green color blindness is the most common, followed by blue-yellow color blindness. A complete absence of color vision âtotal color blindness â is rare. Sometimes color blindness can be caused by physical or chemical damage to the eye, the optic nerve, or parts of the brain that process color information. Color vision can also decline with age, most often because of cataract - a clouding and yellowing of the eyeâs lens.