Eyes, as all other organs, take benefit from food also and vitamins that they contain.
Vitamin A and its precursors (particularly beta carotene) are involved in crepuscular and daily vision's dynamics. As a consequence, Vitamin A deficiency brings to a deficit in night vision and to xerophthalmia (eye dryness and blindness caused by corneal opacity ). That's why this important vitamin represent the necessary ingredient for eyes well-being.
Vitamin A scarcity could provoke serious consequences for sight: eyes fatiguing, light sensitivity, eyelids dryness, loweing of immunitary defenses, with consequently increased tendency to allergies, ulceration, and in cases of extreme seriousness, total irreversible blindess .
vitamin A, deficiency, nonethelss, are unlikely, considered that nature offers us various alimonies rich in this vitamin; besides carrots, also pumpkin, milk, eggs, contain vitamin A . For example, it is enough to eat half of a carrot to satisfy the daily need of Vitamin A for our organism.
As we analyzed, carotenoids are the pigmens taht color the vegetables with the typical bright colors : among them it stands out lutenis and zeaxantin, two substances that prevent eyes' injuries. Lutein is known for its anti- radicals and sight protective properties : it is contained in spinaches, lettuce, peas and cabbage. Whereas, Zeaxantin is present in peppers, corn, egg yolk, mango and spinaches : its deficiency could determin blindness in old people.
Read also:
- Vitamins and eyes well-being (Vitamin B2 and C)
- Vision as a primary necessity
- Today's world has been drawn to strain our eyes
- Comfort in digital world
