老视理论及治疗进展

老视是一种常见的眼部退行性病变,表现为年龄相关性调节力下降,它影响到每一个老年人。随着全新的Schachar调节理论的提出以及传统理论的发展,近年来出现了多种老视治疗方法。目前除了通过各种框架眼镜和接角镜来矫正老视,还可以应用手术方法如前睫状区巩膜切开样(AGS)以及巩膜扩张(SRP)来恢复调节能力。采用人工晶状体植入形成单眼视,多焦点人工晶状体,可调节型人工晶状体,LASIK手术也都是可行的老视治疗措施。本文总结了目前有关老视的各种机制和治疗方法。

Presbyopia-advances in theory and treatment

Presbyopia is the most prevalent of all ocular afflictions characterized as a progressive age-related loss of accommodative amplitude and ultimately affecting 100% of the population during the normal human life span. Based on the new accommodation theory of Schachar and other advancing traditional hypothesis, many treatments appeared in these several years. Current options to alleviate presbyopia include spectacles and contact lenses, offering pseudo-accommodation. Besides these, many surgical methods such as antereior ciliary sclerotomy (ACS) and surgical reversal of presbyopia (SRP) now are being performed that claim lo actually restore accommodation in presbyopes. Monovision intraocular lenses (IOLs). mullifocal IOLs and accommodative IOLs now are available for presbyopia. Refractive surgery procedures using laser-assisted in situ keratomileusis (LASIK) also provide alternative options for presbyopia. The mechanism of accommodation, the theories of presbyopia, and these new techniques that have developed to reverse presbyopia in the human eve will be reviewed here.