Because Sri Lanka is situated close to the equator, the region experiences consistently high Ultraviolet (UV) index levels throughout the year. While public awareness regarding sunscreen is high, ocular UV protection is frequently neglected.
The Clinical Impact of UV Radiation
According to the World Health Organization (WHO), up to 20% of cataracts globally may be caused by overexposure to UV radiation. Furthermore, cumulative UV damage increases the risk of macular degeneration, pterygium (growths on the conjunctiva), and photokeratitis.
Not All Tinted Lenses are Safe
A dark lens without certified UV protection is actually more dangerous than wearing no sunglasses at all. The dark tint causes your pupils to dilate, allowing more harmful UV rays to enter the eye. At Neth Lanka Opticals, we only dispense lenses verified to provide UV400 protection, meaning they block 99% to 100% of UVA and UVB radiation.