Many people think that getting glasses only requires a computer to take a photo, and then the results can be obtained. This is really a big mistake. The so-called optometry is not done by machines, but by accurate optometry, because our eyes not only have astigmatism, but also astigmatism. Therefore, when fitting glasses, it is necessary to be precise to the exact degree.
These are all the pitfalls that glasses partners have stepped on. If you are wearing glasses for the first time, you must pay attention.
1. The prerequisite for wearing glasses is to wear a pair of glasses with accurate degree. Even if the glasses are purchased well, it is uncomfortable to wear them without proper degree. It requires professional debugging by an optometrist to determine the final degree.
2. Some first-time opticians may not understand the difference in refractive index of lenses. Choosing thinner lenses is better, but it also depends on the degree. For example, if you only have 400 degrees and no astigmatism, the merchant recommends lenses at 1.74. However, 400 degrees is also sufficient for lenses at 1.60, and recommending lenses at 1.74 is definitely because the price is higher.
3. Don't blindly pursue internet celebrity frames, they look pretty when worn by others, and your face can basically be completely blocked. But it is definitely not suitable for people with high height. The reason why internet celebrities look good when wearing them is because they are not nearsighted and do not need lenses. If people are truly highly nearsighted, using this type of lens frame is a burden. Even if you use the thinnest lens to insert it, it is super heavy and super thick, and it will definitely fall straight down.
4. Many people sell high priced lenses under the banner of preventing blue light, and most of them have been cheated. Generally, people with normal myopia can wear them, but it is not suitable for amblyopia and teenagers, which can affect their visual development.
5. Many people, in order to save money, only replace lenses or frames, thinking that their degree has not changed much in recent years and there is no need for optometry. But if you only change the lenses without changing the frame, then you won't know if the newly purchased frame is suitable for your pupil distance and height. If the frame data changes, you will feel that the lenses are not as comfortable to wear. If you are a group with high astigmatism, you have high requirements for pupil distance and height, as even slight changes in degree and other factors can make you feel uncomfortable.