Lens coatings can enhance the durability, performance and appearance of your eyewear lenses. This is true whether you wear single vision, bifocal or progressive lenses. If you are thinking about purchasing new eyewear, here are lens coatings and treatments you should consider.
Another beneficial lens treatment is an invisible dye that blocks ultraviolet (UV) light. Just as sunscreen keeps the sun’s UV rays from harming your skin, UV-protective treatments for eyeglass lenses block those same rays from damaging your eyes. Overexposure to ultraviolet light is thought to be a cause of cataracts, retinal damage and other eye problems.
Regular plastic eyeglass lenses block most UV light, but adding a UV-blocking dye boosts UV protection to 100 percent for added safety. Other eyeglass lens materials, including polycarbonate and most high-index plastics, have 100 percent UV protection built-in, so an extra lens treatment is not required for these lenses.
Photochromic lenses also block 100 percent of the sun’s UV rays without the need for an added UV lens treatment.
Very important: Always make sure you discuss and make decisions about your eye care based upon a formal appointment with your optician or doctor.
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KOBRIN & MARTIN OPTOMETRISTS, SANDTON
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