A sunscreen rated SPF 15 is good for general use. Use SPF 30 to 50 for intense exposure, such as a summer afternoon picnic. This is located along the nose, cheeks and forehead. Take care to cover those areas with sunscreen. Eye protection devices against UV light include good quality sunglasses.
Many different brands are available.
Skiers, snowboarders and welders must be aware or photokeratitis, which occurs when one is exposed to toxic levels of ultraviolet light. The cornea is burned, and the pain comes on 6-12 hours after exposure. Good sunglasses with sideshields are imperative. Welders should take precaution to lower the protective helmet before striking the arc. One must remember that UV light can penetrate fully through clouds, so don't forget to wear your sunglasses on overcast days, and remember your sunscreen and block.