It is a wrong idea that Ultra Violet or UV rays only exist in summer, but they remain intense for the whole year. While emphasizing full protection of our eyes from harmful rays in summer, we do not know that in winter, though the heat from the sun is weak, the UV rays are still high. So when we are outside, we expose our eyes to these harmful rays without any protection in winter.
And a larger number of people only consider sunglasses as some decoration to their appearance, but ignore their real function. When our eyes are exposed to UV rays for long time, we may get some eye problems, such as cataracts, macular degeneration or loss of vision, and we may even get cancer, how terrible it is! It is true that when our eyes are damaged, it is impossible to get back the original good state. So from now on, please pay attention to the protection function of sunglasses and wear a pair of sunglasses when we are outside so as to give us protection from harmful rays, which are very simple but have great effect on our eye health.
Sunglasses in winter are of greater importance for people living in the place where there is much snow and ice in winter. When there is snow and ice on the ground, people will feel their eyes uncomfortable or not easy to see objects clearly due to reflecting glares. And the only thing we need to do is to wear sunglasses, which can enable us to see objects clearly without strain or discomforts caused by strong sun glares and harmful UV rays.
One point we should bear in mind is that not just adults, but children also need sunglasses to protect their eyes. As a matter of fact, children usually take more time to play outside. If they don't wear sunglasses, their eyes will be exposed to harmful rays and are easily to get eye problems. Therefore, please teach them to have the habit of wearing sunglasses when they are young in order to let them have good eye health.