Stănilă A, Popa D
Clinica de Oftalmologie Sibiu.
Oftalmologia. 2001;51(1):8-11.
Accommodation is a complex of phenomena by which the refracting power of the eye changes for focusing on near vision. Accommodative amplitude declines progressively with increasing age. Until today, this phenomenon called presbyopia was explained by Helmholtz's hypothezis which involves only ciliary muscle. It seems that in accommodation are involved, besides the ciliary muscle, the lens and extraventicular elastic components, biophysical dynamics of the lens capsule, vitreous, iris. According with the role of these factors and theirs pathophysiological implications, new surgical technique has developed to reverse presbyopia in the human eye (Surgical reversal presbyopia, Anterior ciliary sclerotomy) and offers a potential for understanding ocular hypertension and treatment of primary open-angle glaucoma.
调节是一种复杂的现象，通过它眼睛的屈光力发生变化以聚焦于近视力。调节幅度随着年龄的增长而逐渐下降。直到今天，这种称为老花眼的现象一直由仅涉及睫状肌的亥姆霍兹假说解释。似乎在调节过程中，除了睫状肌外，晶状体、室周弹性成分、晶状体囊、玻璃体、虹膜的生物物理动力学也参与其中。根据这些因素的作用及其病理生理学意义，已经开发出了新的手术技术来逆转人眼中的老花眼（手术性逆转老花眼，前睫状巩膜切开术），并为理解高眼压症和原发性开角型青光眼的治疗提供了可能。
