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A feature in contact lenses where ultraviolet (UV) light-absorbing compounds are permanently incorporated into the lens material, providing continuous protection to the cornea and internal ocular structures.
read more about integrated uv filter cl ...These filters are rated into Class 1 (blocks over 90% of UVA and 99% of UVB) and Class 2 (blocks over 70% of UVA and 95% of UVB), with Class 1 offering the highest protection.
Crucially, contact lenses only cover the cornea and iris. They do not protect the surrounding eyelid skin, conjunctiva, or the white of the eye (sclera) from UV exposure.
Even when wearing UV-blocking contact lenses, patients are still strongly advised to wear UV-blocking sunglasses to protect the exposed periorbital tissues.
Absolutely not. They are not strong enough to protect the macula from solar retinopathy; only certified solar filters are safe for direct sun viewing.
No. The UV-absorbing agents are transparent to visible light and do not affect the lens color or the wearer's vision.
No. While many popular brands incorporate UV filters, it is not a universal feature and should be verified before purchase.