McDonnell P J, Champion R, Green W R
Ophthalmology. 1987 Feb;94(2):136-42. doi: 10.1016/s0161-6420(87)33485-2.
Of 110 eyes with posterior chamber intraocular lenses (IOLs) examined postmortem, 37% had both haptics outside of the capsular bag; 57% had one haptic in the capsular bag and the other haptic outside of the bag. Typically, these optics were decentered by 1 to 2 mm. Only six eyes (5%) had both haptics within the capsular bag. Erosion into the ciliary sulcus produced obliteration of the major arterial circle of the iris in 12 eyes (11%). The local tissue response to eroding haptics was similar for haptics composed of polypropylene and haptics composed of polymethylmethacrylate (PMMA). The authors found considerable discrepancy between the actual location of haptics and the surgeon's desired location (i.e., capsular bag or ciliary sulcus). Most of these cases were clinically successful.
在对110只植入后房型人工晶状体（IOL）的眼睛进行尸检时，37%的眼睛其两个襻都位于囊袋外；57%的眼睛一个襻在囊袋内而另一个襻在囊袋外。通常，这些人工晶状体的光学部偏心1至2毫米。只有6只眼睛（5%）的两个襻都在囊袋内。睫状沟侵蚀导致12只眼睛（11%）的虹膜大环闭塞。由聚丙烯制成的襻和由聚甲基丙烯酸甲酯（PMMA）制成的襻对侵蚀性襻的局部组织反应相似。作者发现襻的实际位置与外科医生期望的位置（即囊袋或睫状沟）之间存在相当大的差异。这些病例中的大多数在临床上是成功的。
