Dangers of Ultraviolet Radiation to Children’s Eyes
Although ultraviolet radiation is invisible to the human eye, most people are aware of the effects of UV through sunburn and tanning beds. A great deal (>97%) of mid-range ultraviolet (almost all UV above 280nm and most above 315nm) is thankfully blocked by the ozone layer, because it would cause much damage to living organisms if it penetrated the atmosphere. A small fraction of the overall UV light does penetrate and this is responsible for sunburn and the formation of vitamin D in all organisms that produce this (including humans). The UV spectrum thus has many effects, both beneficial and damaging to human health including the eyes.
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