Prevent cataracts

The lens is a part of the eyeball, a lens of 2 convex surfaces, transparent, 4mm thick and 9mm wide surrounded by a semi-permeable membrane for water and electrolytes. The lens has a regulating function so that objects outside the eyes, whether near or far, have images that appear on the retina.

Causes of cataract are the result of oxidation due to lack of oxygen supply (Photo: benhammersley) If the lens is cloudy, it is the same as the blurred glass that is not visible outside, When the lens is Fully opaque will prevent images from getting into the retina and causing blindness. Cataract is one of the leading causes of blindness in the world and in Vietnam, often in people over 50 years old. The disease progresses slowly, initially manifesting in the decrease in aging due to myopia appear extracts, when light comes out the eyes will be uncomfortable but not aching. Then the disease got worse, the eyes looked like through a layer of translucent glass, saw a black spot fixed on the bright eye until it was no longer visible.

Causes of cataract are the result of oxidation due to lack of oxygen supply, increased water content, and reduced protein. Specific elements of cataract include: exposure to sunlight, artificial light (stage headlights, studio, high pressure .), exposure to viruses, germs, substances toxicity of the environment, smoke (cigarettes, car engines, factories .). This contact will potentially damage the protein component of the lens, causing the protein to gradually lose and lead to cataract.

Diets rich in antioxidants and good liver function will help prevent disease. People with cataracts tend to lack vitamin C, copper, manganese and zinc. The antioxidant found in vitreous glutathione together with coenzyme vitamin B2 will protect the eye. Preventing cataracts requires stopping smoking, eating a variety of antioxidant foods such as carrots, lentils, onions, garlic, spinach, spinach, prices, beans and fresh seeds. .