Post-keratoplasty astigmatism management by relaxing incisions:a systematic review  

作　　者：Gaëlle Ho Wang Yin Louis Hoffart 

机构地区：[1]Ophthalmology Department,Aix-Marseille University-APHM,Hôpital de la Timone,264 rue Saint Pierre,13385 Marseille Cedex 5,France [2]Institut Fresnel UMR 7249,Aix Marseille Université,CNRS,Centrale Marseille,Domaine universitaire de Saint-Jérôme Avenue Escadrille Normandie Niemen,13397 Marseille cedex 20,France [3]CERIMED,Aix-Marseille University,27 Boulevard Jean-Moulin,13385 Marseille cedex 05,France [4]Ramsay Générale de Santé,Clinique Monticelli-Velodrome,Marseille,France

出　　处：《Eye and Vision》2017年第1期174-180,共7页眼视光学杂志（英文）

摘　　要：Postoperative visual acuity can be limited by post-keratoplasty astigmatism,even with a clear corneal graft.Astigmatism management can be performed by selective suture removal,adjustment of sutures,optical correction,photorefractive procedures,wedge resection,intra-ocular lens implantation,intracorneal ring segments,relaxing incisions with or without compression sutures and repeated keratoplasty.Relaxing incisions can be made in the graft,graft-host interface or host cornea.Despite the unpredictability of the method because the flat and steep meridians are usually not orthogonal after penetrating keratoplasty,with asymmetric power distribution,all the studies showed an overall reduction of refractive,keratometric or topographic astigmatism,ranging from 30%to 72%with manual or femtosecond-assisted techniques.Most patients with astigmatism higher than 6 diopters had residual cylinder less than or equal to 3 diopters,which can be treated by laser excimer ablation or secondary intraocular lens implantation.

关 键 词：Penetrating keratoplasty Astigmatic keratotomy Relaxing incisions Femtosecond laser 

分 类 号：TN2[电子电信—物理电子学]