Sunglasses are Good for Your Eyes....

A good pair of sunglasses can help protect your eyes from eye damage from the sun . Thus , according to experts , you need to know the criteria for selecting a good sunglasses before buying a new one in the store .Exposure to ultraviolet light ( UV ) in a long time , said the researchers from the University of California at Berkeley , can cause many problems such as cataracts , skin cancer around the eyes and lines around the eyes , and other eye melanoma .


In America , there is no specific standard for sunglasses and printed labels are not consistent so confusing . Stickers are printed on the glasses says , " UV blocks " or " UV absorbent " which is meaningless because it does not explain how much protection from the UV . The safest is to use sunglasses that claim to protect the overall UV . For example , " 99-100 percent UV absorbent " or " UV400 " .But there is no independent verification of these claims so you might want an optician to test your sunglasses to determine the truth of these claims , according to researchers at UC Berkeley in a press release .For those who are not going to buy new sunglasses , it's good to check your sunglasses in the optical near as scratches and abrasion UV coating can degrade over time . An optician can coat the back of UV protection in sunglasses .

All you need to remember that the darker lenses do not necessarily provide higher protection . Darker lenses do not block the UV rays also so that it can be more dangerous than not wearing sunglasses at all . Because the pupils open wider so it makes a lot more UV rays entering the eye .The larger frame glasses , the better . This is because the frame to cover the entry of direct sunlight , the researchers said , but it still can cause distortion .Therefore , every person , including children and those who wear contact lenses , you should be wearing sunglasses when outdoors. Pupils children are very susceptible to UV rays and contact lenses containing UV protection was still considered inadequate.Sunglasses are very important for those who are sensitive to sunlight due to treatment or due to other reasons , and for those who have just undergone cataract surgery ....



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Tips on choosing sunglasses for sports

Good eyesight can certainly help exercise performance. In this case, those who need vision correction can wear contact lenses or special glasses sport. In general, sport goggles must be able to meet the following criteria: vision and optimum protection, durable, and well fitting. How do I choose a sports glasses that fit these criteria? Consider the following tips:

1. Glasses should be made of lightweight material, not easily broken, flexible, and resistant to high temperatures. This can prevent damage on impact glasses when exercising.

2. Sweat blocker feature is very useful to absorb sweat that can flow into the eye and impair vision. Usually in the form of foam which he can be installed and removed in certain parts of the glasses.

3. Perform fitting or adjustment process before buying in order to feel comfortable and fit glasses, especially sunglasses curvature which can give the maximum field of vision and protection. Some types of sports sunglasses are usually quite flexible so it can be adjusted as needed by the wearer.

4. For outdoor sports activities are done, you need sunglasses with 100% UV Protection. Effects of ultraviolet radiation can cause damage to the eyes stages such as cataracts, macular degeneration and vision loss (photokeratitis). In addition, choose a design that turned a blind eye sunglasses thoroughly (wrap-around sunglasses).

5. The sun can be blinding and overcast conditions can make objects become less sharp contrast. To fix this, you need glasses lenses that adapt to the intensity of light, for example, polarized and photochromic lens types. Given the importance of vision for this activity, perform routine eye examinations to detect refractive errors such as nearsightedness, farsightedness, and astigmatism.

The use of contact lenses can also give a wider field of vision and freedom of movement for some kind of sport. But in use, you still have to prepare glasses to overcome the loss of contact lenses such circumstances or situations where contact lenses are not allowed...



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