近视眼

In addition, there is a "pseudo-myopia", which due to excessive use of regulatory role For example, in children, adolescents reading, the reading with the eye too close a distance, it is bound to increase the regulatory role of the eye, causing ciliary muscle function to enhance or spasm, this occurrence of myopia in school, and family to learn some of the irrational factors , for example, a natural classroom lighting, lighting, lighting, seating, seated, excessive use eyes, pay attention to eye health, eye fatigue is closely related to myopia is divided into mild myopia (-3D below); moderate myopia (-- 3D - 6D),-6D or more as high myopia, myopia authenticity required to wear appropriate glasses, children and adolescents need to be fully dilated in the absence of regulating state optometry, refraction measured by the eye itself, after the age of 18 , in the myopia progression-free circumstances, do radial keratotomy to correct myopia.

此外尚有一种"假性近视"，其因过度运用调节作用，例如在儿童、青少年读书时，读物与眼球的距离过于接近，势必增加眼球的调节作用，引起睫状肌功能增强或痉挛，这种近视的发生与在学校以及家庭学习的一些不合理因素有关，例如教室的自然采光，灯光照明，坐位、坐姿，过度用眼，不注意用眼卫生、眼疲劳有密切关系，近视眼又分为轻度近视（－3D以下）；中度近视（－3D—－6D），－6D以上者为高度近视，真性近视需配戴合适的眼镜，儿童和青少年均需充分散瞳，在无调节状态下验光，测出眼球本身的屈光度，18岁以后，在近视无进展的情况下，可做放射状角膜切开术，以矫正近视。

Lack of sleep is the formation of myopia causes a very important one.

睡眠不足是近视眼的形成原因中很重要的一条。

Environmental factors: the occurrence and development of myopia and close a very close relationship with the eye.

环境因素：近视眼的发生和发展与近距离用眼的关系非常密切。

Objective A research of biological parameter of myopic eyes.

目的 研究近视眼各生物学参数的改变。

It was better than caring-sight exercise in aspect of myopic preauion.

近视眼的发生发展有其解剖学基础。

It is believed that the laser in-situ keratomileusis will bring good news for myopic patients with the further development of technology.

相信随着技术的不断发展和完善，激光基质内角膜磨镶术将为更多的中高度近视眼患者带来福音。

It is very difficult for a short-sighted man to pick up a nail from the ground.

近视眼的人要从地上把钉子捡起来是十分困难的。

Most students in our class are near-sighted.

我们班大部分学生都是近视眼。

As we all know, almost eight out of ten high school students are near-sighted.

我们都知道，几乎个中学生中就有八个是近视眼。

"Yes, but I'm near-sighted," replied Charlotte.

"我知道你就在那里，但是我是近视眼。"

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。