YAMOUT OPTICAL CENTER
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YAMOUT OPTICAL CENTER |
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Optical historical |
Recent medical literature has expressed concern about the potential eye damage caused by long term exposure to ultraviolet radiation. According to Prevent Blindness America, the American Academy of Ophthalmology, and the American Optometric Association, "Ultraviolet radiation can play a contributory role in the development of various eye disorders including age-related cataract, pterygium (growth of tissue on the white eye), cancer of the skin around the eye, photokeratitis (sunburn of the cornea) and corneal degeneration. Cataracts are a major cause of visual impairment and blindness worldwide." Ultraviolet light can reach the eye directly from the sun or from reflective surfaces such as water, snow and sand. To protect your eyes, you need sunglasses that eliminate glare from reflective surfaces and reduce UV light transmission. Polarized lenses are the best way to eliminate both glare and UV light. The principle of a polarized lens is best illustrated by observing the use of Venetian blinds. The blind blocks light at certain angles, while allowing light to transmit through select angles. True polarization is achieved by shutting out 100% of undesirable light and allowing 100% of desired light through.
The main benefit of polarized lenses is the elimination of glare from reflective surfaces such as snow, water, sand and roads. The elimination of glare has many advantages including:
Polarized lenses can also protect the eye from damage caused by long term exposure to ultraviolet light. OPTI-POL polarized lenses filter out virtually all UV rays proven harmful to the eye.
Although ordinary sunglasses may reduce brightness, they do not remove glare like a polarized lens. Dark sunglasses without UV protection added may cause more damage to your eyes than not wearing sunglasses at all. The darkness of the lens can cause your pupils to dilate, letting more UV rays into the inner part of your eye. Polarized lenses solve both problems by eliminating glare and filtering out harmful UV light. Also, a polarized lens does not have to be as dark and your eyes achieve a greater level of protection and comfort than from regular sunglasses.
Anyone who is exposed to UV rays should wear polarized lenses including:
Polarized lenses come in a variety of styles and material, so you don't have to settle for a lens style which is different than what you normally wear. LENS STYLES
MATERIALS OPTI-POL polarized lenses come in three different types of materials: Glass, CR-39 plastic, and Hi-Index plastic.
CR-39 Plastic:
COLORS Polarized lenses must have a color. If a polarized lens was clear, light would be allowed to travel through the lens at all angles, eliminating the polarizing effect completely. Polarized lenses are available in a variety of colors including light and dark gray, light and dark brown, yellow, and rainbow. Choosing the best color for your needs will greatly enhance the value of polarized sunglasses.
Click here to view color samples PHOTOCHROMICS-LENSES THAT CHANGE COLOR PHOTOCHROMICS are lenses that change from light to dark when exposed to sunlight. At one time glass was the only option for polarized PHOTOCHROMICS, but recent advances in lens technology have made possible a plastic polarized photo chromic lens, called Polar Active. The Polar Active lens offers dual benefits to the wearer. The polarized film in the lens allows light to enter at one angle, thus eliminating glare and filtering out harmful UV rays. And the PHOTOCHROMICS by Transitions Optical, Inc.provide a comfort lens that will change with varying lighting conditions. Polar Active lenses are available in gray and brown.
OPTI-POL polarized lenses are made in the USA by Specialty Lens and can be purchased through your local doctor or optician, who will be able to assist you in selecting the best OPTI-POL polarized lens for your sun wear needs. When you visit you eyeglass dispenser, be sure to ask:
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