Vitamins and Eye Health

Vitamins and Eye Health


The  eyes , like all other organs, also benefit from the foods and  vitamins  they contain.

Vitamin A

Vitamin  A  and its precursors (in particular  beta carotene ) are involved in the mechanism of   twilight and daytime vision . Vitamin A deficiency consequently leads to impaired night vision and xerophthalemia ( dry eye  and blindness caused by  corneal opacification ). This explains why this very important vitamin is the essential ingredient for eye health.

A lack of vitamin A could cause serious consequences for eyesight: eye strain, sensitivity to light, dry eyelids  , decreased  immune defenses  with increased susceptibility to infections, ulcerations and, in cases of greater severity, irreversible blindness. It should be remembered, however, that vitamin A deficiencies are unlikely, considering that nature offers a large array of foods rich in this vitamin: in addition to carrots, pumpkin, milk, eggs, liver  and animal  foods  in general  are also of vitamin A. For example, half a carrot is enough to meet the body’s daily requirement of vitamin A.
As we have seen,  carotenoids  are pigments that paint vegetables with the typical bright colours: among carotenoids, lutein and zeaxanthin stand out, two substances that prevent the onset of eye diseases. Lutein is known for its anti-radical and eye-protective properties: it is mainly found in  spinach ,  lettuce ,  peas  and cabbage. Zeaxanthin is present, however, in  peppers ,  corn ,  egg yolks ,  mangoes  and spinach: its deficiency could cause blindness in the  elderly .

Vitamin B2 and C

Vitamin B2 is also   closely linked to the proper functioning of vision and the maintenance of eye health: its deficiency, in fact, could cause burning, sensitivity to light,  itching ,  tearing , up to paralysis of the eye muscles . This vitamin is found in liver,  cereals ,  yeast and eggs.

Vitamin C also   plays an essential role in eye health. Being the antioxidant par excellence, together with  vitamin E , ascorbic acid  protects the body from the attack of  free radicals . For this reason, vitamin C could be a valid aid in the prevention of some degenerative eye diseases. Vitamin C is useful in the treatment of  glaucoma  and could counteract the progressive  loss of vision , avoiding the “hardening” of the eye. It is also used in the prevention of  corneal ulcers  and is useful in eliminating infections. It is ubiquitous in plants, in particular it is found inlemon , citrus fruits in general, broad leaf vegetables,  strawberries , peppers,  tomatoes  and  cauliflowers .

Vitamin E

Vitamin E , or tocopherol , also  boasts antioxidant potential  : for this reason it could be useful for the prevention of eye disorders such as  cataracts  and AMD ( macular degeneration  of adulthood ). Vitamin E could decrease the severity of the acute phase of reticular fibroplasia (severe impairment of the visual structures behind the  lens , often leading to blindness); in addition, vitamin E has also brought positive results in strengthening the eye muscles and preventing  blurred vision . Its deficiency could be configured as a contributing cause in  retinal detachment. Vitamin E is found in foods such as cereals,  almonds ,  corn oil , wheat germ oil ,  hazelnuts .

Just as the body benefits from a correct diet , the supply of a good quantity of vitamins is also essential for eye health: in this article we have mainly dealt with eye disorders linked to  vitamin deficiencies . It should be remembered that even an excessive intake of vitamins can cause various types of visual disturbances. For example, excessive  vitamin D supplementation  could cause calcification of the  conjunctiva  and cornea.


From the oldest  legends , it is said that  the eyes are the mirror of the soul : natural medicine completes the proverb, stating that the eye also represents the mirror of the body, of health and of the diseases connected to it.



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