eye has a very important structure-the lens, which is an elastic biconvex transparent body, which is hung from the suspensory ligament in the vitreous fossa behind the iris. It has a unique refractive transparency and refraction function, which can filter some parts. Ultraviolet light has a protective effect on the retina and participates in the adjustment function of the eye.
How should the elderly prevent and delay the development of cataracts?
1. Eat corn
Remember to eat sweet corn instead of waxy corn . The latter has high carbohydrate content and is not suitable for elderly people with underlying diseases. The zeaxanthin , lutein and other nutrients contained in corn can effectively prevent age-related macula and are beneficial to the eyes. Therefore, middle-aged and elderly friends can eat corn 3-5 times a week to help the eyes anti-aging.
2. Eat egg yolk
A premium provider of fat in egg yolk, rich in , lecithin, betaine, cholesterol and other high-quality fats, as well as a variety of minerals, vitamins, Lutein and other nutrients, these nutrients are helpful to the eyes, delay eye aging and prevent age-related macula. Don't worry about the high cholesterol content in the egg yolk. Eating a whole egg every day is good for your health.
3. Eat blueberries
Blueberries are a very popular fruit, famous for containing a lot of anthocyanins ,And among many antioxidant foods, blueberries contain the first amount of anthocyanins. In addition to having a powerful antioxidant effect, anthocyanins can also promote the production of rhodopsin in the retina and help us enhance our eyesight. The powerful antioxidant can prevent the protein in the lens from being oxidized and protect the eyes from . Free radical damage. Regardless of men, women and children, eating more blueberries is good for your eyes. In addition, the outer layer of blueberries is fruit frost, not pesticides.
4. Avoid long-term exposure of ultraviolet rays to the eyes
Long-term exposure to ultraviolet rays can make the lens tissue lose its original function and lose its metabolic balance. Therefore, in areas or seasons with strong ultraviolet rays, such as plateau areas, snowy surfaces with high mirror reflectivity, etc., remember to wear sunglasses or an umbrella when you go out.
Especially outdoor workers, drivers and other people who have been exposed to sunlight for a long time, it is recommended to wear sunglasses. If it is a child whose visual function is not yet fully developed or people who are not suitable for wearing sunglasses, you can use sun protection methods such as umbrellas and hats with a wide brim.
5. Avoid excessive eye use
Modern people have a common problem: using eyes at close distances for a long time can easily make the eyes age prematurely. Therefore, when you usually blink at the computer and mobile phone, look into the distance from time to time, so that your eyes can rest, and more outdoor sports can also play a relaxing effect.
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