China is a “well-deserved” myopia country, how common is myopia? Please see the relevant data in recent years. Many people believe that myopia in children does not matter and can be solved by corneal refractive surgery in adulthood. However, the hazards, risks and complications of myopia are still present, as corneal refractive surgery is equivalent to having glasses made directly on the cornea. People often only know that cataracts and glaucoma have a great impact on vision, but they do not know that myopia is even more harmful than the first two. Everyone is using smartphones. The phone call function of the phone has instead become secondary to the information exchange which is the main function. When smart phones did not appear, I could tolerate forgetting my phone. The traditional eye hygiene of “one fist, one foot, one inch” has a scientific basis! One foot = 33 cm. Reading time of 2 hours and reading distance of 750px is an important point for myopia to occur, parents must pay attention to children’s close eye habits. When watching TV, the distance of TV is much farther than the distance of reading and playing cell phone. So, watching TV is not that terrible. Many parents do not allow their children to watch TV, but give them too much to read books and play with computers, cell phones and ipads is putting the cart before the horse! Outdoor activities can slow down myopia, is a new result of myopia research this year. In the past, traditional food was mainly rice and noodles, but in recent years, dietary habits have changed to include more eggs, dairy, meat and refined foods, which are high-calorie, refined foods and may be associated with myopia. The effect of dietary structure on myopia is very complex, and it is difficult to draw a definite conclusion. However, not being a picky eater is certainly protective for myopia.