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Chang Gung Med J. 2002 May;25(5):315-20.

Cataract extraction in high myopic eyes.

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Department of Ophthalmology, Chang Gung Memorial Hospital, Keelung, Taiwan, ROC.



According to the high prevalence of myopia in Taiwan, we analyze the adopted cataract extractions, identify predicting factors for postoperative vision, and to assess the incidence of retinal complications after Nd: YAG laser capsulotomy in high myopic eyes.


One hundred and twenty-five eyes, which the axial lengths were longer than 26 mm, following cataract extraction were enrolled. Surgeries adopted included phacoemulsification with intraocular lens implantation, extracapsular cataract extraction with intraocular lens implantation, phacoemulsification, and extracapsular cataract extraction. Logistic regression was utilized to assess predictive factors for postoperative vision.


Postoperative vision of 41 eyes (32.8%) of the 125 high myopic eyes improved at least 4 lines of Snellen acuity. Thirty-two eyes (25.6%) achieved good postoperative vision (BCVA > or = 20/40), and 26 eyes (20.8%) demonstrated poor postoperative vision (BCVA < 20/200). Younger age and shorter axial length were appreciated for better visual outcome (p < 0.05). Nd: YAG laser capsulotomy is required for posterior capsular opacity. Three in 125 eyes (2.4%) developed retinal complications and 2 of them had retinal detachment subsequently within one month after Nd: YAG laser capsulotomy.


Most high myopic patients achieved visual improvement after cataract surgeries. Age and axial length are the predictive factors in high myopic patients. It is crucial to examine retina prior to Nd: YAG laser capsulotomy to prevent retinal complication.

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