* optometry. You can go to the local hospital for optometry, get a complete optometry list, and register your glasses. You can also go to an optical shop, but there are no glasses in the shop. Ordinary optical shops will not tell you the degree of glasses.
* Consultation. If you can't go to a hospital or an optical shop for optometry, you can consult a friend or a professional ophthalmologist to find out your optometry degree, or ask a professional doctor to do online or offline optometry through some medical equipment to get an accurate optometry degree.
* glasses. After knowing your degree, you can directly match glasses online.
It should be noted that it is not recommended to buy glasses directly without professional optometry, because the wrong degree may cause damage to vision.