Although sunglasses are a fashion icon, they are also important in preventing eye damage caused by the sun’s ultraviolet light. Most of us would be aware of the sunburn that can cause harmful health issues such as premature aging of skin leading to its cancer. Just as the skin, medical evidence indicates that eyes can suffer from sunburn as well leading to cataracts, blindness etc.
The long-term effects of the ultraviolet light occur gradually without any pain causing vision impairment in time. Damages to the eye include corneal inflammation, cataracts and pterygium, cancer. In terms of exposure to the UV light, children and young adults are specifically at risk. It is essential for the parents/elders to ensure their younger ones protect their eyes with sunglasses especially in times of high UV radiation such as being on the beach or snow where danger occurs due to sunlight reflection.
What is UV radiation?
It is basically a component of solar energy. Other sources of this radiation include tanning lamps, high intensity mercury vapour lights and welding arcs. This radiation consists of three main types: UVA, UVB and UVC. What you need to be concerned of is UVB as this type of radiation causes sunburn and skin cancer. Most of the solar UV radiation is absorbed by the ozone layer. However, a calculation states that a percent drop of the ozone layer increases the level of UVB by two percent.