Sunglasses is a necessity not only in summer

In sunny summer days we always have to make sure to wear sunglasses to protect our eyes. But if the sun doesn’t bother my eyes, is it still necessary to wear sunglasses? The answer is yes! The sun has damaging UV rays that can cause photokeratitis and permanent retinal damage.

What is UV rays and how they affect our eyes? UV rays are just past the violet portion of the visible light spectrum UV light is broken into three different types: UVA, UVB and UVC.UVA has longer wavelengths and passes through glass easily. Experts still discuss about whether or not UVA damages the eyes. UVB rays are the most dangerous. Sunglasses and sunscreen are necessities because of this type of rays. They don’t go through glass. UVC rays are not dangerous for us as they do not reach the Earth because the atmosphere blocks them.

Most people think that they’re at risk only when they’re outside on a sunny day, but UV light can go right through clouds. Basically it isn’t important if the day is cloudy or not. The sun’s rays are strongest between 10 am and 2 pm. Make sure to wear sunglasses especially at this time of a day.

If you wear contact lenses that provide UV protection, have in mind that they don’t cover your whole eye, so you still need sunglasses. Look for sunglasses that protect you 100 percent of both UVA and UVB light. Remember that sun damage can occur regardless of the season or weather, and the effects are cumulative, wearing sunglasses everyday is important.


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