Xu Ye-Sheng, Xie Wen-Jia, Yao Yu-Feng
Department of Ophthalmology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou 310016, China.
J Zhejiang Univ Sci B. 2017 Jun;18(6):539-543. doi: 10.1631/jzus.B1600363.
To report surgical management and favorable outcome in a case with delayed repair of traumatic laser in situ keratomileusis (LASIK) flap dislocation with shrinkage and folds.
A 30-year-old man with a five-year history of bilateral LASIK experienced blunt trauma to his right eye followed by decreased vision for 5 weeks. The surgical management included initially softening the flap by irrigation with balanced salt solution (BSS). The shrinkage folds were carefully and gently stretched by scraping with a 26-gauge cannula accompanied by BSS irrigation. All of the epithelial ingrowth on the flap inner surface and on the bed was thoroughly debrided by scraping and irrigation. After the flap was repositioned to match its original margin, a soft bandage contact lens was placed.
At his initial visit, slit-lamp microscopy and optical coherence tomography (OCT) showed shrinkage of the LASIK flap with an elevated margin approximately 3 mm above the original position. The flap covered half of the pupil and had multiple horizontal folds. Two months after surgery, the flap remained well positioned with only faint streaks in the anterior stroma. The uncorrected visual acuity of the right eye was 20/20 with a manifest refraction of Plano.
For delayed repair of traumatically dislocated LASIK flaps, sufficient softening by BSS, stretching the shrinkage folds, and thorough debridement of ingrowth epithelium enable resetting the flap and provide satisfactory results.
报告一例创伤性准分子原位角膜磨镶术(LASIK)瓣移位伴收缩和褶皱延迟修复的手术治疗及良好效果。
一名30岁男性,有双眼LASIK手术史5年,右眼遭受钝挫伤,随后视力下降5周。手术治疗最初包括用平衡盐溶液(BSS)冲洗使瓣软化。用26号套管针刮擦并辅以BSS冲洗,小心轻柔地拉伸收缩褶皱。通过刮擦和冲洗彻底清除瓣内表面和床面上的所有上皮内生。将瓣重新定位以匹配其原始边缘后,放置软性绷带接触镜。
初次就诊时,裂隙灯显微镜检查和光学相干断层扫描(OCT)显示LASIK瓣收缩,边缘抬高至比原始位置高约3 mm。瓣覆盖了一半瞳孔,并有多个水平褶皱。术后两个月,瓣位置良好,前基质仅有轻微条纹。右眼裸眼视力为20/20,明显屈光为平光。
对于创伤性移位的LASIK瓣延迟修复,BSS充分软化、拉伸收缩褶皱以及彻底清除内生上皮可使瓣复位并提供满意的结果。