Wearing sunglasses indeed can protect the eye and prevent cataracts. As we know, exposure to bright sunlight is an important cause of cataracts. The function of sunglasses is just prevent the eye from the harm of bright sunlight. That is to say, if you let your eyes being exposed to bright sunlight for long you have higher risks of suffering cataracts than others. Still, you should be aware of the fact that causes of cataracts not in the least only contain not wearing sunglasses. It is common knowledge that cataracts can be the consequences of old age, diabetes, eye injuries, eye inflammation and lonizing radiation exposure. Try to take proper measures to keep your eyes from cataracts.
Wearing a good pair of sunglasses is necessary whenever you need to go to certain circumstances with strong light. When you go outside, you know you should wear sunscreen to protect your skin, because the UV rays of sunlight would darken, burn and age the skin. Long term exposure to strong UV rays might even cause skin cancer. Actually just like the skin, UV rays also impacts our eyes. It can cause damages to the surface tissue, the lens and the cornea. According to some reliable sources, wearing sunglasses could effectively slow down the growth of cataract. The person who is always exposed to sunlight without protection is at a much higher risk of developing cataract. If someone had a intraocular surgery, then he is required to wear sunglasses for a long period after this operation to avoid corneal scarring formed because of exposure to sunlight. Anyway, if you can, why don't wear a pair of sunglasses to protect yourself? Plus, grey and brown colored lenses are the best choice for protection.
A cataract is a clouding of the lens inside the eye which leads to a decrease in vision. It is the most common cause of blindness and is conventionally treated with surgery. Cataracts may stay small and you may not notice them. Commonly cataract surgery needs to be taken. While wearing sunglasses is impossible to cause cataract. Cataract is commonly due to iritis, glaucoma, photophobia and eye floater.