The price of sunglasses needs to be compared to know which one is higher and which is lower. For cheap sunglasses, many people have always had doubts in their hearts, whether they are good or not. Of course, there are many places that sell sunglasses now. There are also roadside stalls selling sunglasses, as well as optical shops and specialty stores. Let's take a look at whether cheap sunglasses are good or not. If you buy it at a roadside stall, it is clear that a large part of these sunglasses are of poor quality, although compared to other places, the price is indeed very cheap. But if you look closely, you will find that there are no labels or tags on this type of sunglasses, and it is hard to believe its quality. Moreover, the inferior sunglasses sold at roadside stalls have no UV protection function, and the lenses are mostly made of plastic. If you wear such plastic sunglasses, your pupils will dilate, and more harmful light will enter, causing dizziness, nausea, etc. Symptoms, long-term wear, severe cases can lead to cataracts. Therefore, everyone should be cautious when buying sunglasses. If it is some professional optical shop, the price of sunglasses in some optical shops will be cheaper compared with the optical shop. This is related to many factors, from the design of sunglasses to the sale, there are many environments, if these links are more hands-on, the price will be relatively cheaper, so we can see that the prices of the sunglasses that have been represented are usually It is more expensive because of the high cost of intermediate links. Therefore, if this kind of cheap sunglasses is sold in a professional optical shop, it is generally not bad. The price of sunglasses is lower than that of other optical shops, but the quality is still high. Office operation, reducing the rent, the price is also cheaper. Moreover, when a pair of sunglasses is designed to appear on the market, many of the links in the middle are done by hand, which greatly reduces the intermediate cost and makes the price more favorable. Sunglasses prices have naturally decreased. Sunglasses are made of high-quality materials and function naturally. There are dozens of chain stores across the country, and the quality is more guaranteed. Cheap prices are relative terms. When choosing sunglasses, in addition to looking at the price, it is very important to buy a platform that is better and more reliable, and their after-sales service is also very good. When choosing sunglasses, you need to buy better according to your actual needs, don't just follow your trend.