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人步入中老年后,和全身各个部分一样,眼部也逐渐地、程度不同地出现一系列的变化。 在眼部的变化中,视力的变化发生最早、最敏感,也最突出,容易被人们感觉到并受到关注。视力的变化,表现为远视力和近视力两个方面。 远视力发生减退,可见于原有轻度远视者。在这以前,有100度左右的轻度远视者,通常情况下,可通过睫状肌的有效收缩和具有弹性的晶体发生相应的突度改改变,完成调节作用。进入中、老年,调节功能减退,逐渐露出远视的原形,从隐性转化为显性,远视力便减退。与此同
After entering middle-aged and elderly people, like all parts of the body, the eyes gradually and to a varying degree appear a series of changes. Changes in the eyes, changes in vision occurred the earliest, most sensitive, but also the most prominent, easily perceived by people and attention. Visual changes, manifested as far-sightedness and near vision two aspects. Far vision decreased, can be seen in the original mild hyperopia. Prior to this, about 100 degrees of mild hyperopia, usually, through the effective contraction of the ciliary muscle and the elastic deformation of the corresponding changes in the crystal to complete the regulatory role. Into the elderly, dysfunction, gradually revealed the prototype of hyperopia, from the recessive into dominant, distant vision will decline. Same with