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高度近视眼白内障摘除时人工晶体选择的探讨
作者姓名:Xie L  Dong X  Zhu G  Cao J  Li S  Shi W  Ying L
作者单位:山东省医学科学院眼科研究所
摘    要:目的评价高度近视白内障摘除和后房型人工晶体植入时人工晶体屈光度和光学直径的选择方法。方法对眼轴>26mm的60例(94只眼)行白内障现代囊外或超声乳化摘除术,同时植入使术眼呈低度近视状态和不同光学直径的后房型人工晶体。结果患眼术后屈光状态符合低度近视,平均屈光度为-2.07±1.95D。较大光学直径的人工晶体,术后容易观察眼底。Ⅲ级核以下的白内障慎重行超声乳化摘除者,无并发症发生。结论轴性高度近视白内障摘除行人工晶体植入,应选择术后呈低度近视状态的人工晶体。较大光学直径有利于眼底观察。慎用超声乳化有利于减少术后散光。

关 键 词:近视  晶体.人工  白内障摘除术

The choice of intraocular lens before cataract extraction for cases with high myopia
Xie L,Dong X,Zhu G,Cao J,Li S,Shi W,Ying L.The choice of intraocular lens before cataract extraction for cases with high myopia[J].Chinese Journal of Ophthalmology,1998,34(5):342-344.
Authors:Xie L  Dong X  Zhu G  Cao J  Li S  Shi W  Ying L
Institution:Institute of Ophthalmology, Shandong Academy of Medical Sciences, Qingdao 266071.
Abstract:OBJECTIVE: To study the choice of diopter and size of optical portion of intraocular lens (IOL) before cataract extraction for cases with high myopia. METHODS: Extracapsular cataract extraction (ECCE) or phacoemulsification with IOL implantation was performed on 60 cases (94 eyes) with high myopia (axial length > 26mm). The posterior chamber IOL selected and inserted was the one with the diopter and size of the optical portion suitable for the recipient to have a postoperative low myopia and easy to be examined with an ophthalmoscope. RESULTS: The postoperative eyes were of low myopia, -2.07 +/- 1.95 D. The larger size of optical portion was more suitable for ocular fundus examination. Great care was taken for phacoemulsification for cataractous nucleus below III grade. CONCLUSIONS: For patients with axial myopia, the IOL implanted should create low myopia postoperatively. Larger optic size is better for fundus examination. Phacoemulsification can produce less astigmatism and damage, but the indication must be controlled strictly.
Keywords:Myopia    Lenses  intraocular    Cataract extraction  
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