Weissman B A
Am J Optom Physiol Opt. 1984 Oct;61(10):651-3.
Many models have been proposed to describe the simultaneous changes which occur in front and back radii of curvature of a hydrogel contact lens flexing or "wrapping" onto the surface of a human eye. This study first discusses the concept that the change in front radius (delta r1) may be related to the change in back radius (delta r2) by a simple constant which may change with lens design, and then develops a separate new general relation from observed lens behavior: delta r1/delta r2 = 1 - 0.05 F, where F is unflexed lens back vertex power.
已经提出了许多模型来描述水凝胶隐形眼镜在弯曲或“包裹”到人眼表面时前后曲率半径同时发生的变化。本研究首先讨论了前表面曲率半径变化（δr1）可能与后表面曲率半径变化（δr2）通过一个可能随镜片设计而变化的简单常数相关的概念，然后根据观察到的镜片行为建立了一个单独的新通用关系：δr1/δr2 = 1 - 0.05F，其中F是未弯曲镜片的后顶点屈光力。
