Br J Ophthalmol. 1986 Jun;70(6):411-4. doi: 10.1136/bjo.70.6.411.
A randomised controlled trial in progress for more than five years assessed 333 eyes by three methods of cataract surgery. These were (A) intracapsular extraction and contact lens usage; (B) intracapsular extraction and implantation of an iris supported lens (Federov I); and (C) extracapsular extraction and implantation of an iridocapsular lens (Binkhorst 2-loop). This paper reports the use of a weighting scale for rank scoring complications which are dissimilar or are mutually exclusive (for example, capsular versus contact lens problems) to allow the use of non-parametric statistics for comparing disparate features. Thus we found that group B did significantly worse in terms of the number and severity of postoperative complications, a trend in accordance with visual results. This method may serve as a useful model for similar studies.
一项进行了五年多的随机对照试验通过三种白内障手术方法评估了333只眼睛。这三种方法分别是：(A) 囊内摘除术和使用隐形眼镜；(B) 囊内摘除术和植入虹膜支撑晶状体（费德洛夫I型）；以及(C) 囊外摘除术和植入虹膜囊袋晶状体（宾克霍斯特双袢型）。本文报告了一种用于对不同或相互排斥的并发症（例如，晶状体囊膜问题与隐形眼镜问题）进行排名评分的加权量表的使用情况，以便能够使用非参数统计方法来比较不同的特征。因此我们发现，就术后并发症的数量和严重程度而言，B组的情况明显更差，这一趋势与视觉结果一致。该方法可作为类似研究的有用模型。
