老花眼应该如何治疗（How should the treatment of presbyopia）.docVIP

下载本文档

1
0
约1.51万字
约 10页
2017-09-02 发布于河南
举报
版权申诉

老花眼应该如何治疗（How should the treatment of presbyopia）.doc

1、有哪些信誉好的足球投注网站（book118）网站文档一经付费（服务费），不意味着购买了该文档的版权，仅供个人/单位学习、研究之用，不得用于商业用途，未经授权，严禁复制、发行、汇编、翻译或者网络传播等，侵权必究。。
2、本站所有内容均由合作方或网友上传，本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺！文档内容仅供研究参考，付费前请自行鉴别。如您付费，意味着您自己接受本站规则且自行承担风险，本站不退款、不进行额外附加服务；查看《如何避免下载的几个坑》。如果您已付费下载过本站文档，您可以点击这里二次下载。
3、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等，请点击“版权申诉”（推荐），也可以打举报电话：400-050-0827(电话支持时间：9:00-18:30)。
4、该文档为VIP文档，如果想要下载，成为VIP会员后，下载免费。
5、成为VIP后，下载本文档将扣除1次下载权益。下载后，不支持退款、换文档。如有疑问请联系我们。
6、成为VIP后，您将拥有八大权益，权益包括：VIP文档下载权益、阅读免打扰、文档格式转换、高级专利检索、专属身份标志、高级客服、多端互通、版权登记。
7、VIP文档为合作方或网友上传，每下载1次，网站将根据用户上传文档的质量评分、类型等，对文档贡献者给予高额补贴、流量扶持。如果你也想贡献VIP文档。上传文档

老花眼应该如何治疗（How should the treatment of presbyopia）

老花眼应该如何治疗（How should the treatment of presbyopia） Treatment of presbyopia Presbyopia is a physiological phenomenon is not a pathological state and does not belong to the ametropia, is an inevitable problem in vision people enter old age after the. With the increase of age, eye regulation ability decreased gradually due to the recent difficulties that patients in close work, must be in its static refractive outside plus a convex lens can have a clear vision of the past, this phenomenon is called presbyopia (presbyopia). Presbyopia is directly related to the occurrence and development of age and occurs mostly in 45 years later, it happened sooner or later and the severity is related to other factors, such as the original status, height ametropia reading habits, lighting and general health etc.. With the increase of age becomes solid and lens hardening characteristics can be created easily lost, so the adjustment capacity decreased gradually in later period of ciliary muscle strength weakened, but also reduce the factors regulating force can not be ignored. The weakening of the regulating force results in the lower clarity of the near object and the gradual shift of the near point. The disappearance of this regulatory force is not a pathological change, because it does not occur suddenly throughout a persons whole life. At the beginning, there is no sense of inconvenience. When you get closer to your habitual study or work distance, you will find it very inconvenient to look at. With the increase of age adjusted gradually reduce the difficulty in doing work at close range, culminating in presbyopia (presbyopia). The etiology of presbyopia As age increases, the forces of change change. Figure 1 is the Duane from the map can clearly see the adjustment of the determination results of 4000 human eyes, a teenager adjusting force is 14.0D, the near point at 7cm after that age, near point gradually and continuously back, at the age of 36 has retreated to 14cm, the control for