Department of Refractive Surgery, Mater Private Hospital, Dublin, Ireland.
Clin Exp Ophthalmol. 2010 Mar;38(2):183-91. doi: 10.1111/j.1442-9071.2010.02198.x.
Photorefractive keratectomy, laser epithelial keratomileusis (LASEK) and Epi-LASIK are all variants of a similar type refractive surgery involving laser on the surface of the cornea and differ mainly in management of the epithelium. Although laser in situ keratomileusis (LASIK) is currently the most popular form of refractive surgery, LASEK is the procedure of choice in some patients. We highlight potential complications of LASEK and how these may be managed. Following laser refractive surgery, corneal thickness is reduced, which has implications for intraocular pressure measurement and glaucoma screening and management. This is particularly important following surface laser procedures where no evidence of previous surgery may be visible. In the event that cataract surgery is required at a later date, correct calculation of the appropriate intraocular lens power can be difficult and it thus important that patients are given their preoperative keratometry readings and refraction. Compared with LASIK patients, those who undergo LASEK are considered to be at lower risk of corneal ectasia. Improved understanding of wound healing post LASEK and better postoperative pain management are ongoing challenges.
准分子激光角膜切削术、激光上皮下角膜磨镶术(LASEK)和 Epi-LASIK 都是涉及角膜表面激光的类似类型屈光手术的变体,主要区别在于上皮的处理。虽然准分子激光原位角膜磨镶术(LASIK)是目前最流行的屈光手术形式,但在某些患者中,LASEK 是首选的手术方法。我们重点介绍了 LASEK 的潜在并发症以及如何处理这些并发症。激光屈光手术后,角膜厚度会减少,这会影响眼压测量和青光眼的筛查和管理,尤其是在表面激光手术后,因为可能看不到之前手术的迹象。如果以后需要进行白内障手术,那么正确计算适当的人工晶状体度数可能会很困难,因此,重要的是要给患者提供术前角膜曲率读数和屈光度。与 LASIK 患者相比,接受 LASEK 手术的患者被认为发生角膜扩张的风险较低。对 LASEK 术后伤口愈合的理解以及更好的术后疼痛管理仍然是正在面临的挑战。