病例对照研究又称回顾性研究,是一种常用的流行病学研究方法,主要用于探索一些病因不清疾病的可能发病原因,以及对一些预防或治疗措施进行评价。目前这一研究方法正日益受到眼科临床和科研工作者的重视。一、方法 Case-control study, also known as retrospective study, is a commonly used method of epidemiological research, mainly to explore the possible causes of some ill-defined diseases, as well as some preventive measures or treatment evaluation. At present, this research method is being paid more and more attention by ophthalmology clinicians and researchers. First, the method