Deep anterior lamellar keratoplasty for post-LASIK ectasia

被引:15
作者
McAllum, Penny J.
Segev, Fani
Herzig, Sheldon
Rootman, David S.
机构
[1] Toronto Western Hosp, Toronto, ON M5T 2S8, Canada
[2] Univ Toronto, Toronto, ON, Canada
[3] Herzig Eye Inst, Toronto, ON, Canada
关键词
deep anterior lamellar keratoplasty; laser in situ keratomileusis; ectasia;
D O I
10.1097/ICO.0b013e318033b4e9
中图分类号
R77 [眼科学];
学科分类号
100212 ;
摘要
Purpose: To describe 2 cases of post-laser in situ keratomileusis (LASIK) ectasia managed with deep anterior lamellar keratoplasty (DALK). Methods: Clinical findings, surgical interventions, and outcomes are reported. The surgical technique of DALK is described. Results: Two patients developed progressive loss of vision after LASIK surgery with enhancement procedure(s). Corneal ectasia was diagnosed on the basis of clinical findings, progressive central corneal thinning on pachymetry, and topographical changes with irregular astigmatism and inferior corneal steepening. Both patients underwent uneventful DALK surgery, in which the anterior 80% of the central corneal stroma was replaced by a donor button and sutured in place. The postoperative recovery was uneventful, except for mild interface haze in I case, which resolved within 2 weeks of surgery. However, I patient underwent additional surgery, including clear lens extraction with intraocular lens placement, astigmatic keratotomies, and photorefractive keratectomy (PRK) to achieve good unaided visual acuity. At last follow-up, at least 2 years after DALK, both patients were satisfied with their vision. Their uncorrected visual acuity (UCVA) was 20/60+ and 20/40- in their operated eyes, improving to 20/40+ and 20/30- with minimal refractive corrections. The grafts and lamellar interfaces were clear. Conclusions: We believe that DALK should be considered as an alternative to penetrating keratoplasty for the surgical management of post-LASIK ectasia.
引用
收藏
页码:507 / 511
页数:5
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