One of the main reasons for glasses online lens matching is the obvious price advantage. Whether you want to buy prescription glasses online or just need glasses that are more suitable for your personality style, you can save a lot. Compared with the traditional physical glasses store, you can easily find that the price offered by the glasses online store has a price advantage of at least 60%. At present, many opticians also provide discount codes. For example, glasses online glasses usa often provide 10% discount codes, which will further increase the price advantage. However, you will not find any difference in quality and safety glasses.

I think it's better to take pictures of yourself when trying on glasses in offline stores, especially if you don't wear contact lenses, you may not be able to see yourself clearly. In addition, the effect photos of different sunglasses can be compared, even the sunglasses of different stores, or sent to good friends to ask their opinions. Just put it back gently after the test. You can also ask the waiter about optometry. Then you can't buy glasses now because you don't have the optometry list. You can think about it and go.

Generally speaking, the refractive index of glass is higher than that of resin, so the glass of the same degree is thinner than that of resin. But the density of glass is higher than that of resin, so although the glass lens is thin, the glass lens may be heavier. There are also differences in scratch resistance between glass and resin. You can check the details by yourself.