I believe that many friends want their children to have a pair of bright and beautiful eyes, do not want their children to wear small glasses, joined the ranks of myopia. So many parents in the child’s growth process is very careful to protect and correct the child’s eye habits, but we have taken the right measures, the following and we will analyze: First: preschool (7 years old) do not allow children to watch TV, computers and cell phones can prevent myopia. On this point, I can only partially agree. First of all, a person’s visual development is from birth to reach the age of 7 years old basic development and maturity (in layman’s terms, like long height, from birth to about 20 years old will not grow), such as 3 years old to check the visual acuity table 0.3, 5 years old to 0.6, 7 years old to 1.0, in the process of development to promote the development of visual acuity of the factors are as follows: 1. adequate nutrition, mainly vitamins, to put it bluntly is to eat more vegetables (Eat more vegetables than a variety of vitamin pills is much better); 2. Enough light stimulation, how to understand this, or take the long body, for example, want to grow taller, in addition to eating well, eat more than more physical exercise is essential, the same reason, light stimulation is the development of visual acuity “physical exercise”, the white is to see more things, and the TV is the most important thing to do. The same reason, light stimulation is the visual development of the “physical exercise”, so white is to see more things, and television and other electronic products light is conducive to vision development, as long as to maintain a sufficient distance, there will not be any problem. 3. If you don’t get enough light stimulation and nutrition during the developmental period, your eyesight may not reach the normal level when you reach maturity (e.g., when you check your eyesight in elementary school, both eyes are 0.8 or 0.6, which is called amblyopia in the absence of any ocular disease or refractive error). And subsequent treatment is difficult to return to the normal level. To summarize, for children’s eye health, do not need to regard television, computers, cell phones and other electronic products as a beast, as long as the viewing distance, appropriate viewing is conducive to vision development.