Sunglasses: Protective role

Are sunglasses necessary to wear while out in the sun?

Sunglasses make great fashion accessories but more important than that is protecting your eyes from the sun’s ultraviolet rays which causes harmful effects to your eyes. Ultra violet radiation can not only damage the skin of your eyelids and cause diseases like skin cancer but also hamper the lens, cornea and other parts of your eyes thus damaging your vision and causing pain. It is therefore necessary to seek protection by wearing sunglasses, especially when you go out in the sun.

Here are some good reasons why you should start using sunglasses and protect your eyes from sun:

Putting on sunglasses lessens the risk of cataract:

Cataract which is a clouding of the eye’s lens that blurs vision can be caused by extended exposure of your eyes to ultra violet rays when out in the sun. This eye condition is not limited only to aged people as believed by many. Putting on sunglasses can shield your eyes from the harmful ultra violet rays and lessen the risk of cataract.

cataract - sunglasses

Wearing sunglasses protect eyes from macular degeneration:

Macular degeneration in the eyes is one of the main factors of blindness in many people across the world. It results from the damage caused to the retina and hampers the central vision. UVA rays pass through the cornea and reach your retina and lens posing the threat of macular degeneration. However, wearing them can lower the risk developing the condition.

Using sunglasses lower the risk of pterygium:

Pterygium, a growth of tissue over the white surface of the eye that can change the eyeball’s curve is caused by extended exposure of eyes to sun’s ultra violet rays and can often result in astigmatism, an optical defect in which the vision is blurred. Using them for protection from sun can lower the risk of pterygium and keep your eyes healthy.

pterygium

Wearing sunglasses reduce the risk of snow blindness:

Snow blindness, a painful inflammation of the cornea that causes temporary vision loss is caused by over exposure of your eyes to UVB rays. Though UVB rays are partially filtered by the ozone layer they tend to be more effective than UVA and poses big threat. UVB rays penetrate less deeply and are absorbed completely by the cornea. By wearing sunglasses UVB rays can be shielded and the risk of snow blindness can be reduced.

What types of sunglasses are recommended?

Sunglasses that block out 90% to 100% of both UVA and UVB radiations are recommended to keep your eyes healthy and sharp. It is also to be kept in mind that the degree and color of darkness of the lens has nothing to do with its ability to obstruct UVA and UVB rays.

Wearing sunglasses starting from a young age while going out in the sun is advisable to safeguard your eyesight and maintain healthy and pain free eyes. This habit will benefit you even as you enter old age.

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