摘要
白内障摘除及人工晶状体植入术后影响视力的主要原因之一是术后散光。术后散光是术前散光和手术源性散光(surgically induced astigmatism,SIA)的矢量和。手术源性散光是一个矢量,既有大小又有方向。对手术源性散光进行计算分析,是进行白内障、屈光手术之前的必要步骤。本文就手术源性散光的计算方法进行综述。
One of the main reasons affecting visual acuity after cataract extraction and intraocular lens implantation is postoperative astigmatism. The postoperative astigmatismis the vectorial sumof preoperative and surgically induced astigmatism. The surgically induced astigmatismis a vector which includes size and direction. And the analysis of surgically induced astigmatismis the necessary step before cataract and refractive surgery. This paper has summarized the method of calculation of surgically induced astigmatism.
出处
《国际眼科杂志》
CAS
2016年第12期2217-2220,共4页
International Eye Science
关键词
白内障
角膜
散光
矢量分析
cataract
cornea
astigmatism
vector analysis
