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Home » Vision & Eye Conditions » A Guide to UV Exposure » Types of UV Radiation

Types of UV Radiation

sunscience skin

We’ve all been told that the sun emits ultraviolet light that damages our skin, but did you know that there are 3 types of UV light?

  • UV-A light (longest wavelength 320-400 nm) accounts for 95% of the UV radiation that reaches reaches the Earth’s surface.
  • UV-B light (280-320 nm) causes sunburn and reddening of the skin.
  • UV-C light (100-280 nm) is the most damaging type of UV radiation and is mostly absorbed by the ozone layer.


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