The Importance of Wearing Glasses
With the sun shining brightly in the sky, we can feel that summer has already taken the place of the spring. Looking around, we will find people wearing different kinds of prescription sunglasses which are modern and fashionable. But do we wear sunglasses only because that it can make us look more beautiful and attractive? Of course, the answer is “No”. Sunglasses are more than ornaments for it can also protect our eyes from ultraviolet radiation.In VK,you can also buy glasses,reading glasses,and eyeglass frames!
Most of us know that the ultraviolet radiation is bad for our skin. And women who pursue beauty may buy a lot of goods which can protect them from sun burnt and let their skin remain white. However, fewer of us may know that ultraviolet radiation can also do harm to our eyes.
So we had better buy a pair of sunglasses and wear it when we go out so as to protect our eyes. It has been proved that it is easy for our crystalline lens to take in UV radiations and that the harm done by UV radiation has two dominating features.
Firstly, the harm done by the UV radiation can be accumulated and it is hard for people to notice that directly for UV radiation is a kind of invisible light.
Secondly, the crystalline lens is unable to be restored once the harm has done to it. For example, if your eyes are exposed to the UV radiation for a long time, your cornea and retina can be damaged, which will make your crystalline lens turbid. Then the situation of your eyes can become worse because of UV radiation so that you get cataract and find it difficult to see anything around you. And the only thing we can do is to use artificial lens to substitute the crystalline lens when a cataract operation is performed.
And because the harm that UV radiation done to our eyes is invisible, we can hardly sense it at once. If you don’t feel uncomfortable without sunglasses, it doesn’t mean that you are able to avoid the harm of UV radiation but that your eyes are not so sensitive to those visible lights.
With a pair of sunglasses, we can not only become more fashionable but also healthier. So what are we waiting for in a hot but vigorous summer like this?