很多人都有这样的经历,长时间持续看电脑、电视,玩电子游戏,用不了多少天,视力就会急剧下降,出现近视;而那些能够合理看远调节和休息的,视力下降就很缓慢,或者不发生视力下降。这就像手电电池一样,多次短时间使用,使用寿命较长;一次长时间持续使用,就会因为急性消耗而迅速耗竭。人的视力也是一种有限的资源,如果消耗过度,眼球就会发生病理变化,出现包括近视在内的各种眼疾。 Many people have such an experience, for a long time continue to watch computers, television, playing video games, less than a few days, the sharp decline in visual acuity, the emergence of myopia; and those who can reasonably adjust the distance and rest, vision loss is very slow , Or no loss of vision. This is like a flashlight battery, repeated short-term use, longer life; a prolonged use, it will rapidly depletion due to acute consumption. Human vision is also a limited resource, if excessive consumption, the eye will occur pathological changes, including myopia, including a variety of eye diseases.