Dr. Stephen S. Jennings, O.D.We keep Your Eyes in Sight !
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Eye Doctor Network
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Often the most neglected aspect of eye care is protection from ultraviolet radiation and minimizing eyestrain from glare and reflections. It has in fact been demonstrated that ultraviolet radiation does contribute to the formation of cataracts and retinal degeneration. There are an abundance of lens materials available to shield you from harmful UV rays such as polycarbonate or high index lenses, additionally UV 400 protection can also be added to conventional plastic lenses. However UV protection alone does not provide comfort from the glare and brightness of the sun. It then becomes necessary to color tint the lenses and in some cases add polarization, antireflective or mirror coatings to improve vision. Polarized lenses reduce the reflected light and glare that come off of water, snow and ice, and the hood of your car. They are well known to help fishermen and skiers but should be considered by everyone to increase comfort. The tint or color of the lens is usually brown or gray (gray considered to be the multipurpose color), but other colors are available.
Lens color in a polarized lens is in fact linked to purpose e.g. brown is better for inshore fishing, whereas gray is best for offshore fishing. Brown or even a purple toned lens is considered best for golf and some studies show that greens can actually be read more accurately without a polarized lens. In addition to fixed tint sunglasses there is also the option of variable tint or photochromic lenses in plastic, glass, lightweight polycarbonate and high index. Photochromics or Transitions as they are sometimes known, have the advantage of being clear indoors and change dark outdoors, and are now available in a variety of colors. The main advantage to photochromics however are that they negate the need of buying two pair of eyeglasses while fully protecting against ultraviolet light. Another option available to patients are frame sunglass clips or clip-ons. They’re available in polarized and non polarized types and are usually form fit to many prescription eyeglass frames as well as being available in a few generic after market types. Obviously there are many options to consider when purchasing sun-wear and it can sometimes be confusing, however at our office we do our best to assist you with making the best lifestyle choice. Article Author: Dr. Stephen S. Jennings, O. D. |
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