What protects us from Ultraviolet Light?

What protects us from Ultraviolet Light?

Solar radiation, and ultraviolet (UV) light in partictilar, is increasing worldwide with the thinning of the protective ozone layer. Over 90% of ultraviolet radiation is UVA, which is most intense in early morning and afternoon, can pass through window glass, penetrates into the dermis, and causes tanning and wrinkling. UVB is most pronounced midday, does not penetrate window glass, and is associated with sunburn. Ultraviolet liglit hasbeen implicated in multiple human diseases from skin cancer tocataracts to immune suppression.

Prevention of potential ocular and adnexal damage from ultraviolet radiation can be addressed ...