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- W3030983669 abstract "目的 介绍利用散光环指导角膜移植术后选择性拆线矫正散光的简易方法,探讨拆线时间、术前病因等对拆线后散光变化影响.方法前瞻性研究.病例选择:不同病因行穿透性角膜移植术后7～15个月35例40只眼.拆线方法:以电脑验光仪散光环的最大经线为直径画圆(理想散光环),拆除散光环离理想散光环最远处对应的缝线.比较拆线前后视力、散光和不同因素对散光变化的影响.结果平均随访时间4个月.拆线前后平均裸眼和矫正视力分别提高2.9和3.3行.拆线前后平均散光分别为7.36D和4.35D(t=4.93,P=0.000),平均每拆线一根散光减少1.51D;术后7～9、10～12、13～15个月拆线后平均散光变化分别为4.88D、2.16D、2.15D,7～9个月组同另两组差别有统计学意义(F=13.72,P=0.000);圆锥角膜、感染性角膜炎、角膜变性三组拆线前后角膜散光变化分别为2.55D、1.68D、1.82D,圆锥角膜组同其他两组差别有统计学意义(F=4.19,P=0.030).结论散光环是指导角膜移植术后选择性拆线矫正散光的有效方法,拆线时间、术前病因等对拆线后散光变化有影响。" @default.
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- W3030983669 date "2004-10-10" @default.
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- W3030983669 title "Selective suture removal directed by Placido disc to correct the astigmatism after penetrating keratoplasty" @default.
- W3030983669 doi "https://doi.org/10.3760/cma.j.issn.1006-4443.2004.10.020" @default.
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