There's more to choosing sunglasses than how good they look on you.Your sunglasses should keep harmful sun rays away from your eyes.Although the human body is remarkable at replacing some damaged cells, the cells in the lens of the eye can��t be replaced.
Damage from ultraviolet and to a lesser degree infrared rays can build up over a lifetime and lead to cloudy areas of the lens of your eye called cataracts.
You need to filter as many of these as you can away from your eyes.Most sunglasses, coated with UV blockers, block the ultraviolet B rays, but the cheaper ones may cheat a little on ultraviolet A.
Examine the label.Apart from UV, brightness is an issue.What people don't realise is that going from inside to outside involves confronting light thousands of times brighter than what has entered the eye the moment before.
Clear glass transmits 90% of light.As the glasses get darker, less and less light penetrates.There are amber-coloured lenses called ��blue blockers��.For a while these were recommended for tennis players".These absorb not only ultraviolet, but all blues in the colour range", Duffner notes.Some people say this makes for sharper vision, but they did a study and showed that they do not block UV very well and may cause the pupil to dilate and let in more ultraviolet.
If you really want to be comfortable in the glare and protect your eyes from future cataracts, there is more to choosing sunglasses than just looking cool.
The most important thing is ultraviolet rays.So our sunglasses will block the ultraviolet A rays and ultraviolet B rays.Besides, the other thing is mentioned that blue blockers do not block UV and let in more ultraviolet.Buy the sunglasses to keep harmful sun rays away from your eyes and protect them.Our online shop is a leading provider of sporting goods, apparel and collectibles and is offering sales on various products from the NBA, sunglasses, NHL, NCAA, MLB.
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