Davis R M, Campbell D M, Jacoby B G
Department of Ophthalmology, University of South Carolina, School of Medicine, Columbia 29203.
Cornea. 1991 May;10(3):244-8. doi: 10.1097/00003226-199105000-00010.
Trans-scleral ciliary sulcus and iris suture fixation of posterior chamber intraocular lenses (IOLs) in eyes without posterior capsular support are techniques gaining wider acceptance. Primary indications are IOL exchange in pseudophakic bullous keratopathy and secondary IOL insertion in aphakia. Accurate placement of the posterior chamber lens loops within the ciliary sulcus is based on knowledge of ciliary sulcus anatomy. Nineteen postmortem eyes were sectioned in the coronal plane to expose the posterior iris border and the ciliary body. Ciliary sulcus diameters were measured, and the mean diameter was 11.0 +/- 0.37 mm. The mean limbus-ciliary sulcus distance was then measured by passing 26-gauge needles through the ciliary sulcus and sclera. The mean limbus-ciliary sulcus distance was 0.9 mm. These measurements may guide ophthalmic surgeons in choosing appropriate IOL designs for IOL exchange or secondary IOL procedures.
在没有后囊膜支撑的眼中，经巩膜睫状沟和虹膜固定后房型人工晶状体（IOL）的技术正获得更广泛的认可。主要适应证为假晶状体性大泡性角膜病变中的IOL置换以及无晶状体眼中的二期IOL植入。后房型人工晶状体袢在睫状沟内的准确放置基于对睫状沟解剖结构的了解。对19只尸体眼进行冠状面剖切以暴露虹膜后缘和睫状体。测量睫状沟直径，平均直径为11.0 +/- 0.37毫米。然后通过将26号针头穿过睫状沟和巩膜来测量角膜缘-睫状沟的平均距离。角膜缘-睫状沟的平均距离为0.9毫米。这些测量结果可为眼科医生在选择用于IOL置换或二期IOL手术的合适IOL设计时提供指导。
