color vision problems have a variety of causes.
Normal aging can increase the chance of a color
vision problem, and the color vision problem may change during a person's life.
As the lens in the eye ages, the lens darkens. It becomes more difficult to
see the difference between dark blues, dark greens, and dark grays.
Side effects of certain medicines can cause temporary or
permanent color vision problems.
Certain eye diseases, such as
diabetic retinopathy, can cause temporary or permanent
color vision problems. Treating these conditions may help preserve or restore
Injury to the eye, such as a part of the retina
(macula) or the optic nerve, can cause color vision problems.
Zinc is an essential trace mineral that's important for the immune system and the brain, as well as other parts of the body. In infants, zinc deficiency can delay normal development. At any age, serious zinc deficiency can lead to risk of infections.
Eye-related benefits. Zinc is believed to be important for vision because high levels of the mineral are found in the macula, part of the retina. Zinc enables vitamin A to create a pigment called melanin, which protects the eye. Some studies show...