Richard H. Sterling, OD
& Associates
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Serving the Blue Bell area of Montgomery County with over 3 decades of experience in optometry. Come SEE us today for a comprehensive eye examination
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Dr. Richard Sterling
921 Penllyn - Blue Bell Pike
Blue Bell, PA 19422
215-628-2020

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Dr. Sterling's Eye Blog

Friday, January 2, 2009

Non-Glare Lens

Non-Glare: Better vision, better appearance
All eyeglass lenses reflect some light, reducing the amount of light that enters the eye to form visual images. This can have an impact on vision, especially under low-light conditions, like when driving at night. Lens reflections can also cause glare, further reducing vision in these situations.
The amount of light reflected depends on the lens material. Conventional glass or plastic lenses reflect about 8% of incident light, so only 92% of available light enters the eye for vision. Thinner, lighter lenses made of high index materials reflect up to 50% more light than regular glass or plastic lenses (up to 12% of available light).
Non-glare reduces lens reflections and allows more light to enter the eye for better night vision. Regardless of the lens material, eyeglass non-glare lenses transmit over 99% of available light to the eye.
By eliminating surface reflections, non-glare also makes your lenses nearly invisible. This greatly improves the appearance of your eyewear and allows others to see your eyes, not the reflections in your glasses.
When cleaning non-glare lenses, be sure to use the products recommended by our optician. Because non-glare eliminates reflections that can hide small scratches, you’ll want to take care not to scratch non-glare lenses, as scratches on these lenses may be more visible than scratches on a lens that is not non-glare.

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