Harmful ultraviolet (UV) rays can pass through clouds, so sunglasses are a must — sunny and cloudy day alike. Sand, snow, water, and your car’s windshield all reflect extra light and call for eye protection. Look for sunglasses with 99% or 100% UVA and UVB blocking. As an added benefit, sunglasses help protect the tender skin around your eyes and may help prevent cataracts. Bonus fact: driving exposes you to a lot of UV too, so consider a clear UV film for your car‘s side windows (front shields all have good protection).