Department of Ophthalmology, Saga University Faculty of Medicine, 5-1-1 Nabeshima, Saga 849-8501, Japan.
Graefes Arch Clin Exp Ophthalmol. 2011 Sep;249(9):1409-15. doi: 10.1007/s00417-010-1605-5. Epub 2011 Jan 6.
To examine the lens capsules of dislocated in-the-bag IOLs.
Retrospective case series. Nineteen dislocated IOLs encased in capsules (in-the-bag IOLs) from 19 patients were included. The clinical characteristics of the 19 patients were reviewed. The explanted in-the- bag IOLs were examined by scanning electron microscopy.
Associated clinical conditions included pseudoexfoliation (PEX) in seven eyes, high myopia in three eyes, previous history of trauma in two eyes, previous vitreoretinal surgery in two eyes, retinitis pigmentosa in one eye and uveitis in one eye. PEX specimens showed capsular contraction, shrinkage of the diameter of the capsular bag and dehiscence of zonular fibers. The remaining 12 specimens exhibited slight capsular contraction that lacked shrinkage of the bag and exhibited capsular delamination at the equatorial region, in which the zonular fibers had completely disappeared.
Capsular delamination as well as dehiscence of zonular fibers may be involved in the dislocation of in-the-bag IOLs.
检查脱位的囊袋内人工晶状体的晶状体囊。
回顾性病例系列研究。纳入了 19 名患者的 19 个脱位人工晶状体（囊袋内人工晶状体）。回顾了 19 名患者的临床特征。通过扫描电子显微镜检查取出的囊袋内人工晶状体。
相关临床情况包括 7 只眼的假性剥脱（PEX）、3 只眼的高度近视、2 只眼的既往创伤史、2 只眼的既往玻璃体视网膜手术、1 只眼的色素性视网膜炎和 1 只眼的葡萄膜炎。PEX 标本显示囊袋收缩、囊袋直径缩小和悬韧带纤维裂开。其余 12 个标本表现为轻微的囊袋收缩，缺乏袋收缩，并在赤道区表现为囊层分离，其中悬韧带完全消失。
囊袋分层以及悬韧带纤维的裂开可能与囊袋内人工晶状体脱位有关。
