Sihai network

How about wearing glasses for a long time? What's the effect of wearing glasses

Now with the progress of science and technology, mobile phones, computers, radiation, there is a certain degree of harm to the body, so can short-sighted people wear glasses for a long time? What is the impact of wearing glasses for a long time

myopia is generally limited by 300 degrees, and it will not squint when outdoor activities are under 300 degrees. At this time, it is clear and not fuzzy when looking at things, so it is not recommended to wear glasses. It is only recommended to wear it in class, TV and computer. However, at 300 degrees or above, you don't feel like squinting at things, but in fact, you see things that are fuzzy, and you will use more adjusting power to see things in the distance. In this way, according to the fuzzy theory of Ophthalmology, your nearsightedness will speed up, and it is easy to form astigmatism. The principle of myopia deepening is that when you see things fuzzy, the ciliary muscle of the eye needs to use more adjusting power. When the time is long, the ciliary muscle will be tired, lose elasticity, form pseudomyopia, and as time goes on, the eye axis will be elongated, forming true myopia. Because of the new fatigue of the eyes and the new pseudomyopia, the low degree true myopia is transformed into the moderate myopia below 600 degrees. And then develop into high myopia. Therefore, we all recommend wearing glasses all day for more than 300 degrees. Myopia does not wear glasses, see thing is fuzzy state, can accelerate the development of myopia only, form astigmatism faster. Astigmatism degree is large, easy to headache, more difficult to correct than simple myopia.