Opticaid polarised sunglasses designed to be worn over prescription eyewear. No need to buy expensive prescription sunglasses ! Unisex wrap around styling. Can also be worn as normal sunglasses. Polarised lenses remove horizontal glare, can help improve visability and reduce eye fatigue. Ideal for driving, reading, sightseeing, fishing and most outdoor sports. Full UV400 protection. Filter category 3 designed for use in bright conditions.