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Do all sunglasses provide UV protection?

sunglasses UV
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Do all sunglasses provide UV protection?

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A. “UV” stands for ultraviolet light or radiation, of which UVA and UVB pose the greatest threat to eye health, and can specifically cause damage to the eyes retina. Lenses with 100 percent UV protection absorb these rays and can prohibit dangerous UV light from reaching the eye. While everyone needs to protect their eyes, it is important to note that certain people are particularly at risk, including those who live in the U.S. sunbelt, people who’ve had laser, cataract or other eye surgeries, contact lens wearers, those with eye disease and finally anyone using photosensitizing medications such as tetracycline.

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