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Treatment of corneal epithelial in-growth after excimer laser in situ keratomileusis
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- Author:
- No author available
- Journal Title:
- CHINESE JOURNAL OF OPHTHALMOLOGY
- Issue:
- 7
- DOI:
- 10.3760/j:issn:0412-4081.2002.07.009
- Key Word:
- 准分子激光原位角膜磨镶术;手术后并发症;上皮细胞;角膜疾病;准分子激光治疗性角膜磨镶术
Abstract： 目的探讨准分子激光治疗性角膜切削术(phototherapeutic keratectomy,PTK)治疗准分子激光原位角膜磨镶术(laser in situ keratomileusis, LASIK)术后角膜瓣下角膜上皮内生的疗效.方法对LASIK术后发生角膜瓣下角膜上皮内生患者6例(6只眼)行PTK,术中重新掀开角膜瓣,刮除植入的角膜上皮组织,采用直径7 mm光斑,以5～10个脉冲切削角膜瓣基质面和基质层表面,层间冲洗,复位角膜瓣,采用直径3 mm光斑,以50～75个脉冲沿角膜瓣边缘进行切削.术后随访时间5～12个月.结果 5只眼表现为颞侧角膜瓣边缘下出现匍行性灰白色物质,局部角膜瓣边缘水肿和融解;1只眼表现为角膜瓣下局限性灰白色团块状物质,角膜瓣下基质层局部融解.全部术眼PTK术后无角膜瓣下角膜上皮内生复发;除1只眼残留轻度角膜瘢痕外,余5只眼角膜恢复透明;术后视力均达到LASIK术前最佳矫正视力.结论采用PTK治疗LASIK术后角膜瓣下角膜上皮内生,不仅效果良好,而且可有效防止复发.
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