Harris W F
Department of Optometry, Rand Afrikaans University, Johannesburg, South Africa.
Ophthalmic Physiol Opt. 1990 Apr;10(2):200-2. doi: 10.1111/j.1475-1313.1990.tb00976.x.
The important formal process of inferring properties of populations from statistics of samples requires a method by which variables can be compared or ranked. A suitable method of comparing dioptric powers is described. The method recognizes the essentially four-dimensional nature of dioptric power and is sufficiently general to allow for comparison of powers (for example, equivalent powers of general thick bitorics) that cannot be represented in the usual manner, sphere/cylinder x axis.
从样本统计数据推断总体特征这一重要的形式化过程需要一种能够对变量进行比较或排序的方法。本文描述了一种比较屈光力的合适方法。该方法认识到屈光力本质上具有四维特性，并且具有足够的通用性，能够对通常方式（球镜/柱镜×轴）无法表示的屈光力（例如，一般厚双凸面镜的等效屈光力）进行比较。
