视力会影响我们的视觉效果，如果视力下降当我们通常看事物时， 它将变得越来越模糊，儿童是发展的纽带，人体的许多器官仍在逐渐成长和发展，眼睛是一样的如果你不注意自己的眼睛很容易引起眼睛视力下降，近视因此， 通常有必要养成良好的眼疲劳习惯，一般儿童的视力为0.4怎么做
2.揉眼睛当您看不到总体目标时，普通的手揉眼睛，In a vain attempt to see clearly as soon as possible.
3.blink.Frequent blinking can reduce myopia in a certain procedure.Improve the visual quality of eyes.When many people cry,Seeing things will be clearer.
4.Crooked neck.What often happens is watching TV series with a crooked neck,It’s also because when you crook your neck,It can reduce the influence and influence of some diffuse light sources,Some children even develop the habit of crooked necks.
5.error.The overall goal of the distance is not clear,I didn’t say hello to relatives and friends.Copy the wrong question set during the exam,When moving in the dark, you can be knocked down or injured by things,Some are mainly manifested as lower academic performance,It is often necessary to borrow other people’s notes to copy these.
6.near.It is often mainly manifested in moving closer when watching TV series,As close as possible to the TV,When going to read and write.Lie close and low.
7.Pull the eye.A very small number of children cannot see the overall goal far away,Common hands are on the upper eyelids,Pull the skin of the inner corner of the eye outward,Achieve the same practical effect as squinting your neck.
8.眯眼.Some children with myopia have exotropia,When one eye sees straight ahead,The other eye is focused on the outside.therefore,当您发现眼睛倾斜时，还必须检查视力.
10.皱眉.皱着眉头，为了使眼睛“打”，为此减轻视觉疲劳.但实际上这样做是因为眼外肌被眼睛压迫4岁孩子视力多少算正常，代替儿童正常视力多少4岁孩子视力多少算正常， 近视的发展速度加快.原因是眼外肌被眼睛压迫儿童正常视力多少，代替， 近视的发展速度加快.