准分子激光治疗性角膜切削术联合人工刮除对LASIK术后上皮增殖的影响

来源 :世界核心医学期刊文摘.眼科学分册 | 被引量 : 0次 | 上传用户:hualidewushi
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Purpose: To evaluate the effect of phototherapeutic keratectomy (PTK) in combi nation with manual scraping when removing epithelial ingrowth under a LASIK flap . Material and Methods: Three patients, who had undergone several surgeries foll owing LASIK in order to remove epithelial ingrowth that was threatening vision, were treated with a flap lift, manual abrasion and PTK. The PTK was performed on both the stromal and the flap side with the aim of eliminating the threat and i mproving vision. Two patients underwent primary surgery to remove epithelial ing rowth with manual abrasion and PTK. The influence on vision, topography and cell recurrences was evaluated. Re sults: Uncorrected visual acuity (UCVA) and best spectaclecorrected visual acuit y (BSCVA) improved in four cases and remained good in the fifth case. The refrac tion did not change significantly. Topography disclosed changes in the irregular astigmatism, explaining the improved BSCVA. Central epithelial ingrowth did not recur, whereas peripheral ingrowth did. The peripheral ingrowth did not progres s, except in case 1, where a cyst formed that required surgery. Conclusions: It is our belief that adding PTK to manual scraping improves the prognosis for eyes with epithelial ingrowth. It is mainly the central ingrowth that is positively affected. Improved adhesion between the stroma and the flap is one possible expl anation. Purpose: To evaluate the effect of phototherapeutic keratectomy (PTK) in combi nation with manual scraping when removing epithelial ingrowth under a LASIK flap. Material and Methods: Three patients, who had under under two surgeries foll due LASIK in order to remove epithelial ingrowth that was threatening vision, were treated with a flap lift, manual abrasion and PTK. The PTK was performed on both the stromal and the flap side with the aim of eliminating the threat and i mproving vision. Two patients underwent primary surgery to remove epithelial ing rowth with The manual on the topography and cell recurrences was evaluated. Re sults: Uncorrected visual acuity (UCVA) and best spectaclecorrected visual acuity (BSCVA) improved in four cases and remained good in the fifth case. The refrac tion did not change significantly. Topography disclosed changes in the irregular astigmatism, explaining the improved BSCVA. Central epithelial ingrowth did not rec ur, and peripheral ingrowth did. The peripheral ingrowth did not progres s, except in case 1, where a cyst formed that required surgery. Conclusions: It is our belief that adding PTK to manual scraping improves the prognosis for eyes with epithelial ingrowth. It is mainly the central ingrowth that is positively affected. Improved adhesion between the stroma and the flap is one possible expl anation.
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