Now there are many styles of glasses, such as some fashionable acetate glasses, metal glasses or titanium glasses. There are many choices of colors and styles, which can sometimes make users look more elegant. Sunglasses, in particular, are listed as clothing, and with different colors of clothes, they are indispensable equipment for many people. However, for short-sighted people, most people are still reluctant to wear glasses if they have a choice. Therefore, how to protect glasses or prevent myopia from deepening has become a problem that everyone cares about. Many people like to lie down and read books because they feel more comfortable. This article mainly talks about the damage to the eyes caused by lying down and reading, which can lead to or deepen myopia.

Why is lying down and reading a book shortsighted? When reading and writing, it is appropriate to keep the eyes about a foot away from the book. The physiological function of the eye is like this, the farther you look, the greater the adjustment of the eyeball, and it is beneficial to the eyes to often see from a distance. If the distance between the bowed eye and the book is too close, the adjustment of the eyeball will be more tense, which will often cause fatigue of the eyeball and deepen myopia. Because after people lie down, the contact area between the body and the supporting surface (such as a bed) becomes larger, the pressure becomes smaller, and the human body is in a comfortable state, so the nerve center will make people feel sleepy, so as to promote the brain and body to rest. At this time, the human brain is relatively slow, and the memory is also greatly reduced, which is not conducive to learning. Moreover, lying down and reading the eyes are easy to fatigue, and the elasticity of the eye muscle fibers becomes smaller, so it is easy to be nearsighted.

So how to maintain the correct posture for writing and reading?

1. Keep your fingers one inch away from the tip of the pen when writing. When some people write, they are used to holding their fingers very close to the tip of the pen, so that the eyes cannot see the font, the head is tilted to one side, and the distance between the eyes and the notebook is inconsistent. , resulting in poor eyesight. Therefore, when writing, the fingers must be one inch away from the tip of the pen, the head is straight, and the body is straight, so that it will not affect the eyesight.

2. When reading and writing, the eyes are one foot away from the book: the physiological function of the eyes is as follows: the farther you look, the greater the adjustment of the eyeball, and it is beneficial to the human eyes to often look far away. If the distance between the bow and the book is too close, the adjustment of the eyeball will be more tense, which will often cause the eyeball to be overworked and damage your vision.

3. For students, when writing and reading, keep a fist distance between the front chest and the edge of the table, so as to keep the chest straight. If you bend over, the thoracic organs will be compressed, which will affect breathing, affect blood flow, and thus affect the growth and hair growth of the body. In the long run, it will form a hunchback, abnormal curvature of the spine, and affect vision.

I hope the above knowledge will be helpful to you, protect your eyes and stay away from myopia. Some people like to wear glasses, that's okay, you can choose sun glasses with UV protection, or flat glasses with blue light protection, which not only beautify your appearance, but also protect your eyes.