Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, Ferrara.
Department of Ophthalmology, Ospedali Privati Forlì 'Villa Igea'.
Curr Opin Ophthalmol. 2020 Jul;31(4):268-275. doi: 10.1097/ICU.0000000000000666.
Advanced keratectasia often requires corneal transplantation for restoration of vision. This review discusses the surgical approach suitable for these cases including significant updates in the current literature.
With greater understanding of ectatic corneal disease and its associated operative challenges, several modifications in the surgical approach have been developed. Identified predictive factors for successful pneumatic dissection and intraoperative complications have informed surgical planning and decision-making. In the setting of failed pneumatic dissection, sequential use of alternative lamellar dissection techniques is a reasonable surgical strategy. Surgical refinements to optimize visual outcomes and postoperative interventions to correct residual refractive errors have improved visual rehabilitation after keratoplasty.
With evidence of its undisputed advantages, DALK has been widely recognized as the primary surgical option for ectatic corneal disease.
严重的角膜扩张症通常需要进行角膜移植以恢复视力。本综述讨论了适用于这些病例的手术方法,包括当前文献中的重要更新。
随着对扩张性角膜疾病及其相关手术挑战的认识不断加深,手术方法已经有了一些改进。已确定成功的气动分离的预测因素和术中并发症为手术规划和决策提供了依据。在气动分离失败的情况下,序贯使用替代的板层分离技术是一种合理的手术策略。为了优化视觉效果的手术改进和术后干预以矫正残余屈光不正,已经改善了角膜移植术后的视觉康复。
DALK 的优势无可争议,已被广泛认为是扩张性角膜疾病的主要手术选择。