The best UV protection for sunglasses is UV400 or 100% uv protection. UV400 means your sunglasses block almost all uv rays. This includes both UVA and UVB rays up to 400 nanometers. Protecting your eyes from uv light helps stop cataracts and retinal damage.
Imagine you stand in a store, holding two pairs of glasses. One promises glare reduction, the other claims to protect your eyes. You want the best for your eye health. UV protection in glasses shields your eyes from harmful rays. Polarized glasses cut glare and make bright days easier.