Department of Cataract and Refractive Surgery, Shantilal Shanghvi Eye Institute, Mumbai, India.
Department of Cataract and Refractive Surgery, LV Prasad Eye Institute, Kallam Anji Reddy Campus, Telangana, India.
Indian J Ophthalmol. 2024 Apr 1;72(4):508-519. doi: 10.4103/IJO.IJO_1241_23. Epub 2024 Feb 23.
This review analyzed all pertinent articles on keratoconus (KCN) and cataract surgery. It covers preoperative planning, intraoperative considerations, and postoperative management, with the aim of providing a simplified overview of treating such patients. Preoperatively, the use of corneal cross-linking, intrastromal corneal ring segments, and topo-guided corneal treatments can help stabilize the cornea and improve the accuracy of biometric measurements. It is important to consider the advantages and disadvantages of traditional techniques such as penetrating keratoplasty and deep anterior lamellar keratoplasty, as well as newer stromal augmentation techniques, to choose the most appropriate surgical approach. Obtaining reliable measurements can be difficult, especially in the advanced stages of the disease. The choice between toric and monofocal intraocular lenses (IOLs) should be carefully evaluated. Monofocal IOLs are a better choice in patients with advanced disease, and toric lenses can be used in mild and stable KCN. Intraoperatively, the use of a rigid gas permeable (RGP) lens can overcome the challenge of image distortion and loss of visual perspective. Postoperatively, patients may need updated RGP or scleral lenses to correct the corneal irregular astigmatism. A thorough preoperative planning is crucial for good surgical outcomes, and patients need to be informed regarding potential postoperative surprises. In conclusion, managing cataracts in KCN patients presents a range of challenges, and a comprehensive approach is essential to achieve favorable surgical outcomes.
这篇综述分析了所有关于圆锥角膜(KCN)和白内障手术的相关文章。它涵盖了术前规划、术中考虑因素和术后管理,旨在为治疗此类患者提供简化的概述。术前,角膜交联、角膜基质环段和地形图引导的角膜治疗等方法可以帮助稳定角膜并提高生物测量的准确性。考虑传统技术(如穿透性角膜移植术和深层前板层角膜切除术)和新型基质增强技术的优缺点,选择最合适的手术方法非常重要。在疾病的晚期,获得可靠的测量值可能很困难。对于散光和单焦点人工晶状体(IOL)的选择,应仔细评估。在晚期疾病患者中,单焦点 IOL 是更好的选择,而在轻度和稳定的 KCN 中可以使用散光 IOL。术中,使用硬性透气性(RGP)镜片可以克服图像失真和视觉透视丧失的挑战。术后,患者可能需要更新的 RGP 或巩膜镜片来矫正角膜不规则散光。术前全面规划对于获得良好的手术效果至关重要,并且需要告知患者潜在的术后意外情况。总之,管理 KCN 患者的白内障存在一系列挑战,需要综合方法才能实现良好的手术效果。