Taylor A J, Wilson S D
Department of Mathematics, University of Manchester, UK.
Optom Vis Sci. 1995 Dec;72(12):849-56. doi: 10.1097/00006324-199512000-00002.
An attempt is made to gain a greater understanding of lens binding during overnight wear. To do this, a mathematical model is used to investigate the motion of a rigid gas permeable (RGP) lens normal to the eye surface, when the eye is closed. Graphs of the displacement of the lens as a function of time are computed for different lens designs. The rate of apical tear film thinning is found to depend upon the central fitting relation, with lenses that are fitted flatter giving the highest rate of thinning. The model also suggests the relevance of other factors such as eyelid muscle tension and tear-layer composition during sleep to the clinical phenomenon of lens binding.
人们试图更深入地了解过夜佩戴期间的镜片黏附情况。为此，采用数学模型来研究硬性透气性（RGP）镜片在眼睛闭合时垂直于眼表的运动。针对不同的镜片设计，计算出镜片位移随时间变化的曲线。发现泪膜顶端变薄的速率取决于中央适配关系，适配较平的镜片变薄速率最高。该模型还表明，睡眠期间的其他因素，如眼睑肌肉张力和泪液层成分，与镜片黏附的临床现象有关。
