Prosthetic eyes may not be natural, but they still require regular care to remain comfortable and attractive. If you or a family member has a prosthetic eye or may need one in the future, you'll w ...View Article
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As the summer heats up and people spend more time outdoors, sunglasses start showing up everywhere. But are these sunglasses really protecting their owners' eyes, and what kinds of sunglasses are best for you? Here are the answers to some frequently asked questions on the subject at Eyes On Henry.
"UV" stands for ultraviolet, a range of radiation emitted by light sources such as the sun. The two types of UV radiation that reach our planet, UVA and UVB, can both pose serious health hazards including eye and vision problems.
Acute UV exposure may cause photo keratitis, or "snow blindness," in which the eye's surface is actually sunburned. UV rays can also contribute to cataracts, macular degeneration, and cancer of the tissues in and around the eyes (such as the eyelids).
Contrary to what many people assume, the darkness of a sunglass lens has nothing to do with UV protection; it only blocks visible light. That's why buying no-name brands at the local store can be a bad idea, since you don't know what you're really getting.
You need to buy sunglasses that have been rated UV 400. This designation means that the lenses are guaranteed to block 90 to 100 percent of UV rays. Our clinic's sunglasses offer this level of protection.
Because blinding glare from visible light can pose potential hazards of its own, you'll want to select lenses that block 75 to 90 percent of visible light. You should also make sure the lenses block most frequencies of HEV (high energy visible) light in the blue-violet part of the spectrum, a potential macular degeneration trigger.
You can get more than just a stunning selection of designer frames and lenses that block UV/HEV here at Eyes On Henry. We also offer a variety of tint colors, frame sizes and shapes, scratch-resistant coatings, and polarized lenses that block the glitter of reflected light from water, snow and sand.
Once you have all the answers to your sunglass questions, you'll be able to relax and truly enjoy the great outdoors. Call Eyes On Henry at 864-585-0208 to learn more and arrange for a visit to our Spartanburg optical department. We know you'll like what you see!