Cheap prescription sunglasses catch many people’s eye balls. For one thing, they are of low price; for another thing, they eliminate the restriction for an eyeglass wearer to wear sunglasses. However, the point is, cheap as they are, how to select a pair that bears good performance and high quality. Here below are some tips to teach you to select cheap prescription sunglasses.
To choose the right color of the lenses. Those who wear prescription sunglasses with dark colors would more easily to suffer from glaucoma, for the pupil of our eyes would dilate when they are in dark circumstances, which is bad for eyes. Therefore, people are not suggested to wear dark-lens glasses too often. However, this is not always the truth. If your work requires you to be outdoors often, in order to keep eyes from harmful rays from the sun, such as the infrared and ultraviolet radiation, you’d better wear dark-lens glasses. The dark-gray and black ones are recommended, while the blue ones are of the worst performance.
To choose the right lenses. When choosing eyeglass lenses, those whose surface are smooth and of no scratches and bubbles, and those are flat are bad ones, because lenses with scratches or bubbles or concavo-convex lenses would make the wearers feel dizzy. Therefore people are not recommended to buy prescription sunglasses with the above features.
Besides, after finding the right prescription sunglasses, one should as well learn to eliminate suffering from sunglass syndrome, which refers to the symptoms of impaired vision, and even headache and giddiness resulting from wearing sunglasses for a long time. Therefore, when you feel that there are obvious numbness and achiness after wearing sunglasses for 2-3 weeks, you should avoid wearing sunglasses too often and occasionally get a massage around your eyes.
What’s more, the quality of prescription sunglasses are of great significance as well. Badly made glasses are more easily to cause cataracts, keratitis and some other eye diseases. Cheap eye wear does not equal to badly made glasses. The reason why they are cheap may be that they are directly stocked from the factory which eliminates the unnecessary charge concerning services and rent, etc., so do not be influenced by the misconception that cheap buyers takes bad meat.
In conclusion, with the above tips, you are able to purchase a pair of cheap prescription sunglasses of high quality and good performance.