随着电视、计算机的普及,以及信息化社会的来临,现代人长时间用眼、使眼睛持续处于疲劳状态的现象日趋严重。眼疲劳不仅会造成近视,而且还会影响生活和学习。 眼疲劳的原因 眼的机能可大致分为“调节机能”和“辐辏机能”。 眼的“调节机能”是指调节天然透镜——水晶体的厚度,使影像正好聚焦在视网膜上。司管这一机能的是与水晶体上下相连的“睫状肌”。例如,看远处时,睫状肌松驰,水晶体的凸镜处于薄的状态。但是,看近处时,睫状肌紧张,使水晶体膨大,以提高眼的屈光力。 眼的“辐辏机能”是指使两只眼睛转向要看的物体所在方向的运动机能。司管这一机能的是长在眼球 With the popularization of television and computer as well as the advent of information society, the modern people use their eyes for a long time to make the eye continue to be in a state of fatigue. Eye fatigue can not only cause myopia, but also affect life and learning. Causes of eye fatigue Eye function can be broadly divided into “regulatory function” and “convergence function.” The eye’s “conditioning function” refers to the adjustment of the natural lens - the thickness of the crystal body, so that the image is focused on the retina. Discipline of this function is linked with the crystal body “ciliary muscle.” For example, looking away, the ciliary muscle relaxes and the lens of the lens is in a thin state. However, when looking near, the ciliary muscle tension, the crystal enlargement, in order to improve the refractive power of the eye. The “vergence function” of the eye refers to the motor function that turns the two eyes in the direction of the object to be seen. Secretary of this function is growing in the eye