Olsen T, Olesen H
Department of Ophthalmology, Aarhus University Hospital, Aarhus Kommunehospital, Denmark.
Acta Ophthalmol (Copenh). 1993 Feb;71(1):99-102. doi: 10.1111/j.1755-3768.1993.tb04969.x.
Prompted by four cases of IOL power mislabelling, a method was developed which allowed the measurement of the IOL power using a keratometer. The principle of operation was to measure the curvature of the steepest surface of the IOL through a minus lens by which the size of the mires was brought into the measuring range of the keratometer. With this method the IOL power was checked in three random IOL samples from three companies. Although no large errors in IOL power labelling were encountered in these samples, the error of labelling was found to differ significantly between the companies. It was concluded, that poor manufacturing control of IOL power may add to the sources of error in IOL power prediction.
受4例人工晶状体（IOL）屈光度标签错误事件的启发，开发了一种使用角膜曲率计测量IOL屈光度的方法。其操作原理是通过一个负透镜测量IOL最陡表面的曲率，借此将视标大小带入角膜曲率计的测量范围。用此方法对来自三家公司的三个随机IOL样本进行了屈光度检查。尽管在这些样本中未发现IOL屈光度标签有大的误差，但发现各公司之间的标签误差存在显著差异。得出的结论是，IOL屈光度制造控制不佳可能会增加IOL屈光度预测中的误差来源。
