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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。
Objective To evaluate the selection of intraocular lens diopter and optical diameter in high myopia cataract extraction and posterior chamber intraocular lens implantation. Methods Sixty cases (94 eyes) with axial length> 26mm underwent extracapsular or phacoemulsification with posterior chamber intraocular lens (IOL) with low myopia and different optical diameters. Results The refractive status of postoperative eyes was consistent with low myopia, and the average refractive power was -2.07 ± 1.95D. Larger optical diameter of the intraocular lens, easy to observe the fundus after surgery. Class III nuclear cataract careful cautious phacoemulsification exclusion, no complications. Conclusions The intraocular lens implantation in patients with axial myopia and cataract extraction should be performed with intraocular lens with low myopia. Large optical diameter is conducive to fundus observation. Be careful with phacoemulsification is conducive to reducing postoperative astigmatism.