Repeat Keratoplasty for Failed Deep Anterior Lamellar Keratoplasty in Keratoconus: Incidence, Indications, and Outcomes

被引:16
|
作者
Feizi, Sepehr [1 ]
Javadi, Mohammad Ali [1 ]
Khajuee-Kermani, Pejman [1 ]
Jafari, Roya [1 ]
机构
[1] Shahid Beheshti Univ Med Sci, Ophthalmol Dept, Ophthalm Res Ctr, Tehran, Iran
关键词
keratoconus; deep anterior lamellar keratoplasty; DALK; graft failure; repeat keratoplasty; PENETRATING KERATOPLASTY; CORNEAL TRANSPLANTATION; MEMBRANE PERFORATION; ASTIGMATISM; QUALITY; IMPACT;
D O I
10.1097/ICO.0000000000001169
中图分类号
R77 [眼科学];
学科分类号
100212 ;
摘要
Purpose: To analyze the incidence, indications, and clinical outcomes of penetrating keratoplasty (PK) and repeat deep anterior lamellar keratoplasty (DALK) after failed DALK for keratoconus. Methods: This retrospective interventional case series reviewed the medical records of patients with keratoconus who underwent DALK and were followed up for at least 1 year. Patients who underwent PK or repeat DALK for failed DALK were identified. The incidence, indications, and clinical outcomes after repeat keratoplasty were assessed. Results: A total of 382 consecutive eyes with keratoconus underwent DALK over a 9-year period. Graft failure was observed in 14 eyes (3.7%). The reasons for the graft failure included nonhealing epithelial defects (n = 1), pseudoanterior chamber (n = 2), patient dissatisfaction with vision (n = 4), interface opacification (n = 4), high astigmatism (n = 1), and recurrence of keratoconus in the graft (n = 2). Of these 14 eyes with graft failure, 12 eyes underwent PK (n = 11) or repeat DALK (n = 1). At the most recent examination, which was performed 49.7 +/- 25.2 months after the secondary graft, all regrafts were clear. There was no significant difference between eyes with clear first grafts and eyes that underwent PK or repeat DALK in visual outcomes at the final examination. Graft rejection was the most common complication, which was encountered in 75% of the regrafts. Conclusions: The prognosis for repeat keratoplasty was excellent, and the outcomes of secondary grafts were comparable to those of primary DALK grafts. However, the rate of rejection with secondary grafts was high, necessitating close follow-up after PK and repeat DALK performed for failed DALK.
引用
收藏
页码:535 / 540
页数:6
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