Cheap Sunglasses – Advantages and Disadvantages
Ultraviolet rays are harmful for the eyes. Therefore, ophthalmologists recommend wearing sunglasses in the summer. However, if you buy cheaper models, you should know that it is even more dangerous to wear them than to be without them. Too strong sunlight damages the eye. UV radiation can cause changes inside the eye. The most common disease is the cataracts. That is why it is better to wear sunglasses. Of course, the cheapest sunglasses, bought from the stall near the beach, do not protect well enough the eyes from the ultraviolet rays. If they are cheap – it is better to be without them. When daylight becomes weaker, the apple of the eye expands. In addition, if you wear sunglasses that do not mean that, they stop UV rays; your eyes absorb more UV radiation with cheap glasses than if you are without them. Doctors recommend buying sunglasses from specialized shops, where all glasses are made to protect you against UV rays, and there are also glasses for visually impaired. Yet, there are significant differences between models. Glasses of -John Lennon- type, for example, have small, round and thin frame, and the UV rays pass through their frame. That is why doctors recommend sunglasses with wider frameworks. They block the rays with a bigger success. But you should be careful with such models especially while driving because they restrict the visibility. That’s why the most appropriate glasses for drivers are the special ones for driving. The shape of the sunglasses is also important. The ones for drivers, however, should not be too dark – in Germany, the regulations for road traffic ban them. These glasses are very useful where there is a strong reflection – for example, in alpine regions, where the ultraviolet radiation increases as you climb up higher. These glasses protect the cornea from damage, as a result of this reflection. In different optics, you can get specialist advice about dark glasses and you can even measure how many UV rays your sunglasses miss. Another good option for you is to buy cheap frames and to order original glasses. Thus you will have good looking glasses which will protect your eyes. But you should never buy cheap ones because you will regret it. You can also take a look at the catalogue of the famous companies for sunglasses. They can offer you different models and different prices. There are many various colors and frames for the glasses. The best and safer glasses are those with grey, green and brown color. They best absorb the rays and even relax the eyes. Sunglasses should be big, because they should not miss the rays. The only problem is that big glasses do not fit everyone. That’s why you should go to the optician and try as much sunglasses as possible in order to find the best ones for you.
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