Glasses need to pay attention to the size of glasses, optometry, lenses, try on and so on. 1. Glasses size: glasses need to pay attention to the size of the glasses, choose their own wear comfortable, especially for the size of their own face to choose the right glasses, so that the pupils of both eyes can be in the center of the glasses lens. 2. Optometry: One of the things you must do when getting glasses is to get an optometry, which is a machine that detects the degree of the eye and the pupil distance, and with these data, the glasses will be accurate. If you don’t take an eye test, the pupil distance is not allowed to cause headache when you wear the glasses, which is harmful to your eyes but not beneficial. Especially need to point out is that children’s glasses must first do ciliary muscle paralysis, in order to match the accuracy. 3. Lenses: glasses need to pay attention to the lens of the glasses, you can choose from the lens material, color, thickness, use and so on. The thickness of the lens is the most important. The higher the prescription, the thinner the lenses need to be, in order to minimize the discomfort caused by the prismatic effect of aberration and the pressure on the bridge of the nose caused by thick lenses. 4. Trial wear: the degree obtained after the optometry is not necessarily the final degree of glasses, you need to try on the glasses, according to try on whether it is comfortable and then adjust the degree. Pay attention to eye hygiene and avoid prolonged close eye contact. Glasses need to be replaced regularly to avoid affecting the quality of vision.