摘要
目的 分析Verion 数字导航系统在晶状体超声乳化联合散光矫正型人工晶状体（toricIOL）植入术中的应用效果.方法 年龄相关性白内障40 例（40 只眼）,回顾性分析术前角膜散光大于1.0 D,行超声乳化联合toric IOL 植入的病例资料术后随访观察3～6 个月.其中观察组20 只眼,行Verion 导航系统辅助下超声乳化联合toric IOL 植入术.对照组20 只眼,应用爱尔康散光晶状体在线公式计算所需IOL 的屈光度,术前裂隙灯手动标记法定位,行超声乳化联合toric IOL 植入术.记录术后logMAR 视力、对比敏感度、残余散光度及IOL 轴位.结果 两组患者术后裸眼视力较术前均显著提高,观察组术前视力（logMAR,以下同）为0.96 ±0.19,术后为0.07 ±0.08（P =0.001）;对照组术前视力为0.59 ±0.33,术后为0.18 ±0.11（P =0.044）.观察组术后实际残留散光度与术前预计残留散光度之间差异无统计学意义（P =0.687）,对照组散光度则显著增加（P =0.029）.观察组与对照组术后视力、暗视5 个空间频率（1.5、3、6、12 和18 c/d）的对比敏感度差异无统计学意义（P 〉0.05）.术后toric 人工晶状体轴位偏差,观察组为3.00° ±2.12°,明显小于对照组的7.57° ±2.64°,二者差异有统计学意义（P =0.010）.术前预计残散光度两组之间差异无统计学意义;术后观察组实际残留散光度为（0.22 ± 0.18）D,对照组为（0.64 ± 0.24）D,术后二者之间差异具有统计学意义（P =0.010）.结论 Verion 数字导航系统辅助下toric 人工晶状体植入术,IOL 轴位放置更准确,术后残余散光度更小,术后患者能够获得较好的裸眼视力和夜间对比敏感度.
Objective To analyze the efficacy of Verion system assisted phacoemulsification cornbined with toric intraocular lens implantation.Methods The data of 40 eyes of 40 cases with age-related cataract with more than 1.0 D of preexisting corneal astigmatism before surgery were collected and analyzed retrospectively.All cases were divided randomly into two groups.The observation group,20 eyes,underwent Verion system assisted phacoemulsification and toric intraocular lens implantaiton.The control group,20 eyes,underwent toric IOL implantation with application Alcon astigmatic IOL online formula for calculating the diopter and manual slitlamp-assisted preoperative marking.The visual acuity,contrst sensitivity,residual refractive cylinder and toric IOL axis were recorded.The follow-up time was 3-6 months.Results The uncorrected visual acuity after surgery was improved in both groups.In observation group,the visual acuity（log MAR）after surgery was from 0.96±0.19 to 0.07±0.08（P=0.001）;in control group from 0.59±0.33 to 0.18±0.11（P=0.044）.The difference was not statistically significant between the preoperative estimated residual astigmatism and the actual residual astigmatism in observation group（P=0.687）,but the difference in control group was statistically significant（P=0.029）.The difference in visual acuity and contrast sensitivity values between the two groups were not statistically significant at 5 spatial frequencies of noctovision（P〉0.05）.The mean toric lens axis rotation in observation group of 3.00°±2.12°was lower than 7.57°±2.64°in control group（P=0.010）.The difference was not significant between the two groups in the preoperative estimated residual astigmatism.The actual residual astigmatism in observation group was（0.22±0.18）D and（0.64±0.24）D in control group,the difference was statistically significant（P=0.010）.
出处
《中华眼外伤职业眼病杂志》
2017年第9期641-644,共4页
Chinese Journal of Ocular Trauma and Occupational Eye Disease
