Actors, musicians and show business people wear them all the time – in the summer and in the winter; day and night: Sunglasses. However, they are much more than a cool accessory. The fact is, sunglasses protect the eyes against dangerous UV rays. When you buy a pair, though, make sure you choose good quality.
While even the lowest priced models are CE certified these days and consequently offer adequate UV protection, the lenses in cheap models are usually pressed and not cut. Consequently, these lenses may not provide good vision. Especially if you wear sunglasses for an extended period of time, this may fatigue your eyes. Cheaper lenses are also harder to adjust and even if you wear them only for short periods of time, they may leave impressions on your skin. That just is not cool.
Tip: Before you buy a pair of sunglasses, see your optometrist and have him give you detailed advice on glasses with good UV protection. Test the difference between quality lenses and basic pressed lenses.
Why you should wear sunglasses: While your eye does adjust itself to different levels of brightness with the assistance of its pupil which contracts when strong light penetrates the eye, it can only do this up to a certain level. If your surroundings are very bright, the eye may be blinded – and may not be able to see at all, regardless of your otherwise normal vision.
A good pair of sunglasses will prevent this from happening. Another very important factor is that it provides excellent UV protection. Intense yet invisible ultraviolet rays or extended exposure to them can eventually lead to painful inflammation of the conjunctiva and the cornea and ultimately causes damage. There are a few warning signals that will tell you that your eyes have been exposed to too much sun: They feel fatigued, red and tense. Sometimes they will tear up. If this happens, make sure you keep them out of the sun for a few days and buy a good pair of sunglasses.
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