Cornea, Anterior Segment and Refractive Surgery Services, L V Prasad Eye Institute, Hyderabad, AP, India.
Indian J Ophthalmol. 2012 Jan-Feb;60(1):5-14. doi: 10.4103/0301-4738.91335.
Phototherapeutic keratectomy (PTK) is done regularly for anterior corneal diseases such as corneal dystrophies, corneal degenerations, scars, and band-shaped keratopathy. The various indications include both therapeutic and visual. The aim of this article is to discuss the therapeutic indications for PTK, the specific technique pertaining to a specific etiology, the various other procedures like amniotic membrane graft combined with PTK or PTK being done for recurrences in the grafts, and PTK done before cataract surgery when the anterior corneal pathology coexists with the cataract. Post PTK management such as healing of an epithelial defect, use of steroids in the post PTK period, recurrences of primary disease pathology, and infections, will be discussed. Methods of literature search: A Medline search was carried out for articles in the English language, with the keywords, phototherapeutic keratectomy, band-shaped keratopathy, spheroidal degeneration, scars, bullous keratopathy, and corneal dystrophy. The relevant references are mentioned here.
光致分解角膜切削术（PTK）常用于治疗前部角膜疾病，如角膜营养不良、角膜变性、瘢痕和带状角膜病变。其适应证包括治疗和改善视力。本文旨在讨论 PTK 的治疗适应证、针对特定病因的具体技术、羊膜移植联合 PTK 或 PTK 治疗移植复发以及白内障术前存在前部角膜病变时的 PTK。还将讨论 PTK 后的管理，如上皮缺损的愈合、PTK 后使用类固醇、原发性疾病病理的复发和感染。文献检索方法：在英文文献中使用“光致分解角膜切削术、带状角膜病变、球形变性、瘢痕、大泡性角膜病变和角膜营养不良”等关键词进行 Medline 检索。此处提到了相关参考文献。
