Nordan L T, Lusby F W
Jules Stein Eye Institute, Los Angeles, California, USA.
Curr Opin Ophthalmol. 1995 Feb;6(1):36-40.
Cataract surgery has progressed to the point where it can now be performed so as to leave most patients emmetropic or with a predetermined amount of ametropia. The two major factors responsible for this prediction accuracy are intraocular lens power calculation and the control of surgically induced astigmatism. Recent theoretical intraocular lens power formulas are more accurate owing to their improved methods for predicting the postoperative anterior chamber depth. Additionally, there are more reliable methods for determining surgically induced astigmatism as well as methods for its control. Various combinations of wound architecture, wound closure, and astigmatic keratotomy and their effect on surgically induced astigmatism are reviewed.
白内障手术已经发展到现在可以进行的程度，从而使大多数患者术后达到正视或具有预定度数的屈光不正。造成这种预测准确性的两个主要因素是人工晶状体屈光度计算和手术性散光的控制。由于近期理论性人工晶状体屈光度公式在预测术后前房深度方面的方法有所改进，所以更为准确。此外，还有更可靠的方法来确定手术性散光及其控制方法。本文综述了伤口结构、伤口闭合、散光性角膜切开术的各种组合及其对手术性散光的影响。
