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For centuries, carrots have been connected with health benefits. In the Middle Ages, carrots were believed to cure anything from sexually transmitted diseases to snakebites. Carrots became associated with vision, particularly night vision, during World War II. The British Royal Air Force published a story that said skilled fighter pilot John "Cats' Eyes" Cunningham could thank a steady diet of carrots for his night vision flying prowess. In response to the story, many British people began to grow and eat more carrots. They wanted to improve their vision so that they could see better during the compulsory blackouts that were common during World War II. Although Cats' Eyes' carrot eating made for a great story, it was, in fact, propaganda put out to conceal the fact that the Royal Air Force's was actually using radar to locate Luftwaffe bombers during the night [source: Kruszelnicki].

Although British propaganda may have lent carrots a bit more vision-related cachet than they deserve, there's still no doubt that the vitamins found in carrots can promote overall eye health. How do carrots help your eyes?

Carrots and Eye Health

Carrots are rich in beta-carotene, a carotenoid pigment found in many orange fruits and vegetables. Beta-carotene is an important precursor for vitamin A. An extreme lack of vitamin A can cause blindness. In fact, in the developing world, vitamin A deficiency is the leading cause of blindness [source: Web MD].

Lack of vitamin A can also lead to xerophthalmia, a condition in which the eyes can no longer produce tears, dryness in the eyes, swollen eyelids and corneal ulcers. Vitamin A can prevent the formation of cataracts and macular degeneration, the world's leading cause of blindness [source: All About Vision]. However, if your vision problems aren't related to vitamin A, your vision won't change no matter how many carrots you eat.

Carrots aren't the only vegetable that contain the essential beta-carotene that can help your eyes. Other orange-colored foods, such as sweet potatoes, mango, pumpkins, apricots and cantaloupe, are also sources of beta-carotene. This nutrient can also be found in dairy products like milk and cheese as well as egg yolks and liver.

But watch how much beta-carotene-rich fruits and veggies you eat. Since beta-carotene is a pigment, your skin might become orange. Although this likely is harmless, if it happens to you, you might want to consult a health care professional to make sure you're consuming a balanced diet.

In addition to beta-carotene, carrots also contain lutein, an antioxidant. Foods rich in lutein have been found to increase pigment density in the macula, the oval-shaped yellow area near the retina of the eye. The greater the pigment density in the macula, the better protected your retina is and the lower your risk for macular degeneration. In addition to carrots, spinach, kale, Swiss card and dark, leafy greens also contain lutein.

IMPI wrote:Hi
I was operated on at the eye hospital in Northcliff and came home on friday I will probably see the doctor again tommorrow after noon.
Armand