论文部分内容阅读
目的分析角膜前弹力层下切削(sub-Bowman keratomileusis,SBK)治疗近视的术后疗效,评价其临床应用价值。方法对2009年1~6月运用SBK治疗近视的患者进行检查,比较术前,术后1周、1月、3月的视力、屈光度和眼压,评价手术熟练度对术后疗效的影响。结果术前和术后的视力、球镜度数和眼压差异均有统计学意义(P<0.05),但术后各时间点差异无统计学意义(P>0.05)。手术熟练度对术后1周患者的眼压和患者出现术中出血的比例有影响(P<0.05),而对患者术后的视力和屈光度无明显影响(P>0.05)。结论 SBK治疗近视安全有效,稳定性好,可用于矫正较高度数或角膜较薄者,临床应用中需提高医生手术熟练度。
Objective To analyze the postoperative efficacy of sub-Bowman keratomileusis (SBK) for the treatment of myopia and evaluate its clinical value. Methods The patients with myopia treated with SBK from January to June in 2009 were examined. The visual acuity, refraction and IOP were compared before operation, 1 week, 1 month and 3 months after operation to evaluate the effect of operation proficiency on postoperative efficacy. Results The preoperative and postoperative visual acuity, spherical power and intraocular pressure were significantly different (P <0.05), but there was no significant difference at any time point after operation (P> 0.05). The proficiency of operation had an effect on intraocular pressure (IOP) and the proportion of intraoperative bleeding (P <0.05) one week after operation, but had no significant effect on visual acuity and refraction (P> 0.05). Conclusion SBK is safe and effective in treatment of myopia, and has good stability. It can be used for correction of higher degrees or thin corneas. It is necessary to improve the proficiency of doctors in clinical practice.