Off-focus glasses have some effect in slowing down the development of myopia, but they cannot control it. The difference between out-of-focus glasses and regular glasses is the distribution of the optical zone, and out-of-focus glasses are based on regular glasses with the peripheral focus shifted forward. The biggest difference between the two is that out-of-focus glasses have multiple focal points, which prevent light from being projected behind the peripheral retina when worn. Therefore, theoretically, off-focus glasses have the effect of slowing down the growth of myopia compared to traditional glasses, but they cannot control and treat the development of myopia. The main reason for delaying myopia is to develop healthy eye habits, and wearing out-of-focus glasses is only an external effect to delay myopia progression. In daily life, you should sit properly to read, write and work, and keep the normal reading distance in line with the physiological adjustment mechanism of the eyes; if you use your eyes continuously for more than 45 minutes, you need to close your eyes or go outdoors to relax your eyes; don’t read or look at your cell phone while lying down or riding in a car, which will increase the burden on your eyes; review your vision regularly and wear glasses that suit your needs. Children should be reviewed once every three months, and adults should be reviewed once every six months to a year. Off-focus glasses can theoretically slow down the progression of myopia, but not wearing off-focus glasses is a permanent solution, or good eye hygiene, in order to fundamentally prevent myopia from deepening.