Pierscionek B K
Department of Electronic Engineering, Latrobe University, Bundoora, Victoria, Australia.
Exp Eye Res. 1993 Nov;57(5):629-35. doi: 10.1006/exer.1993.1168.
The shapes of two human lenses of different ages (27 and 46 years old) were altered by applying a stretching force to the ciliary muscle. The force was in the outward radial direction and was produced by an electronically driven stretching instrument which is described. The lenses were photographed for different degrees of stretch, and their anterior and posterior curvatures analysed. All curves could be fitted to second order polynomial functions. The posterior curvatures did not appear to alter with stretch and were almost identical in both lenses. Although the anterior surfaces of both lenses changed with application of the stretching force, that of the younger lens showed a considerably greater alteration. Most changes in sagittal thickness occurred with radial stretching of up to 1.0 mm. The results of this work are compared to those of other studies on both functional and in vitro lenses.
通过对睫状肌施加拉伸力来改变两个不同年龄（27岁和46岁）人晶状体的形状。该力沿径向向外，由文中描述的电子驱动拉伸仪器产生。对不同拉伸程度的晶状体进行拍照，并分析其前后曲率。所有曲线都可以拟合为二阶多项式函数。后曲率似乎不会随拉伸而改变，并且在两个晶状体中几乎相同。尽管两个晶状体的前表面在施加拉伸力时都会发生变化，但较年轻晶状体的前表面变化更为显著。矢状厚度的大多数变化发生在径向拉伸达1.0毫米时。将这项工作的结果与其他关于功能性和体外晶状体的研究结果进行了比较。
