验光仪顶焦度测量方法的不确定度分析

按照行业标准的要求，提出了验光仪顶焦度测量误差的具体测量方法，即：用验光仪测量标准模拟眼，每个模拟眼测7次，计算平均值，平均值与模拟眼的标定值比较，其差值即为验光仪的测量误差。并分析了该方法的不确定度。

Analysis of uncertainty of measurement method for vertex power of eye refractometers

This paper is to set up a method to measure the vertex power＇ s error of the eye refraetometer according to the trade standard. That is to measure the standard model eyes by eye refractometer, each one is measured seven times, and we calculate the ar- ithmetical average value. Arithmetical average value minus normal value of the model eye, the difference is the error. It also analyze the uncertainty of the method.