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The Vancouver Eye Doctor Suggests: Prescription Sunglasses to Protect Your Delicate Eyesight

By Vincent Davis Subscribe to RSS | February 15th 2012 | Views:
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What incites the problems, like skin cancer and eye problems, is the high level of ultraviolet radiation provided by the intensifying damage to the ozone layer. As such, many people now assume it necessary to don sunscreen, sunglasses, or safety glasses even in mild weather.

Nonetheless, eye care experts urge against improper use of sunglasses. The irises respond corresponding to the amount of light the pupil needs. They expound when the environment is dim and shrink if it is bright. Recognizing that sunglasses can make the pupils dilate, eye care professionals created prescription sunglasses to prevent eye damage.

Like an ordinary corrective eyewear, prescription sunglasses are made to aid or treat impaired eyesight. With the protective tint, people who are suffering from hyperopia, myopia. or presbyopia can see clearly on a sunny day while maintaining correct focus. Tinted corrective lenses are made with a sturdy, flexible plastic resin known as allyl diglycol carbonate (ADC) or CR-39. This resin is insusceptible to scratching and gamma and ultraviolet radiation.

A few prescription sunglass lenses are made with polycarbonate, which is a very resilient thermoplastic. This strong thermoplastic is also used to make bulletproof glass, riot shields, and safety glasses for high-risk jobs. Like allyl diglycol carbonate, the polycarbonate lenses on sunglasses Vancouver optometrists provide are also highly immune to ultraviolet radiation. These sunglasses coatings may either be anti-reflective or mirrored, according to one's aesthetic choice.

You may visit an eye clinic Vancouver eye doctors manage to ascertain the present condition of your eyes. After all, your eyes may have special needs that the optometrist may need to take into consideration when making your prescription sunglasses. For example, wraparound lenses, or those that arc to the side of the eyes for added protection, could fake your peripheral vision. Luckily, eyewear manufacturers have come up with various ways to reduce this distortion, like lessening the curvature.

Certain types of sunglasses are produced to be suitable for constant wear. Some people choose photochromic lenses, so they can sport at least one pair of corrective glasses either indoors or outdoors. The tint on photochromic lenses is motivated by ultraviolet light, so that they color when left open to ultraviolet radiation. People have to take an eye exam Vancouver optometrists provide to enable optometrists to design suitable photochromic corrective eyewear.

Vincent Davis - About Author:
For more details, please search "sunglasses Vancouver, eye clinic Vancouver, and eye exam Vancouver " in Google.

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