Sunglasses play an important role in protecting eye health and preventing certain eye diseases. The sun produces ultraviolet (UV, A & B) rays that can damage the eyes over time. Long-term exposure to UV radiation may increase the risk of conditions such as cataracts, macular degeneration, and photokeratitis, which is similar to a sunburn of the eye. Wearing sunglasses that block 100% of UV rays helps protect the eyes from harmful sunlight. They also reduce glare and make it easier to see in bright conditions. By wearing proper sunglasses outdoors, people can lower their risk of eye damage and maintain healthier vision throughout their lives.