Harris M G, Harris K L, Ruddell D
Am J Optom Physiol Opt. 1976 Jan;53(1):20-6. doi: 10.1097/00006324-197601000-00004.
The rotation lathe-cut HydroCurveTM gel contact lens was measured on six eyes to evaluate the parameters that influence lens rotation and to determine if this lens could be used to correct astigmatism. Of the 72 observations made, 73.6% showed some lens rotation, and 33.4% of the sample rotated more than 5 degrees per 10 blinks. Of the observations in which rotation was noted, 88.7% were encyclorotation. These results are similar to those found for spin-cast hydrogel lenses. None of the lens parameters evaluated seemed to be related to lens rotation, whereas the eye parameters studied were. Lenses were more likely to rotate on eyes with smaller corneal diameters, smaller palpebral apertures, and corneal curvatures steeper than 4 3.00 DK (X2, N =72, p less than 0.05). Our findings indicate that some method of lens stabilization will be needed before lathe-cut hydrogel lenses can be used to effectively correct astigmatism.
对六只眼睛上的旋转车床切割式HydroCurveTM凝胶隐形眼镜进行了测量，以评估影响镜片旋转的参数，并确定该镜片是否可用于矫正散光。在进行的72次观察中，73.6%的观察显示镜片有一定程度的旋转，33.4%的样本每10次眨眼旋转超过5度。在记录到旋转的观察中，88.7%为顺时针旋转。这些结果与旋转浇铸水凝胶镜片的结果相似。所评估的镜片参数似乎均与镜片旋转无关，而所研究的眼睛参数则与之相关。在角膜直径较小、睑裂较小以及角膜曲率比43.00 DK更陡的眼睛上，镜片更易旋转（卡方检验，N = 72，p小于0.05）。我们的研究结果表明，在车床切割水凝胶镜片能够有效用于矫正散光之前，需要某种镜片稳定方法。
