摘要
目的：比较Verion导航系统与手动标记对散光矫正型人工晶状体（Toric IOL）植入术矫正角膜散光效果的影响。方法：前瞻性随机对照研究。选取2015 年2 月至2017 年2 月在江苏省常州市第三人民医院就诊的白内障合并规则性角膜散光〉 1.0 D的患者80例（80眼）。使用随机数字表法将患者随机分配到观察组（40例）和对照组（40例）。观察组使用Verion数字导航系统引导术中Toric IOL的植入，对照组术前在裂隙灯显微镜下手动标记用于指导Toric IOL的植入。2 组患者均行超声乳化白内障吸除联合Toric IOL植入术，观察患者术前及术后3个月的裸眼远视力（UCDVA）（ LogMAR）、最佳矫正远视力（BCDVA）（ LogMAR）、角膜散光以及术后3个月的实际与预期残余散光、Toric IOL轴位。计量资料组间比较采用独立样本t检验，计数资料组间比较采用卡方检验。结果：对照组术后平均UCDVA为0.13±0.13，观察组术后平均UCDVA为0.11±0.11，2 组间差异无统计学意义（t=-0.96，P=0.34）。实际与预期残余散光的偏差绝对值对照组为（0.21±0.12）D，观察组为（0.12±0.11）D，2 组间差异有统计学意义（t=-3.71，P=0.001）。术后对照组裂隙灯显微镜下Toric IOL实际轴位与预期安放轴位偏差绝对值为4.6°±3.0°，观察组为2.2°±1.6°，2组间差异有统计学意义（t=-3.69，P=0.001）。结论：在Toric IOL植入术中应用Verion数字导航系统相较于传统手动标记技术可明显减小术后实际与预期散光的差值，减少术后Toric IOL轴位与预期轴位的偏离。
Objective： To compare the clinical outcome of digital and manual marking for toric intraocular lens （IOL） implantation. Methods： This prospective randomized control study included one eye each of 80 patients underwent cataract surgery with coexisting corneal astigmatism of more than 1.0 diopter （D）.The eyes were randomly assigned to two groups. The observation group, 40 eyes, underwent Verion system assisted phacoemulsification and toric IOL implantation. The control group, 40 eyes, underwent toric IOL implantation with manual slit-lamp assisted preoperative marking. We recorded the uncorrected distance visual acuity （UCDVA）, best corrected distance visual acuity （BCDVA）, and corneal astigmatism before and after surgery, as well as the anticipated and observed residual astigmatism. The follow-up time was 3 months. Means and standard deviations were calculated. Data were performed by t-test, chi-square tests.Results： The mean postoperative UCDVA for the observation group was 0.11 ± 0.11 log minimum angle of resolution （logMAR）, and for the control group it was 0.13 ± 0.13 logMAR （t=-0.96, P=0.34）. The mean deviation from the targeted induced astigmatism （TIA） for the observation group was 0.12 ± 0.11 D and for the control group it was 0.21 ± 0.12 D （t=-3.71, P=0.001）. The mean postoperative toric IOL misalignment measured by the slit lamp was 2.2° ± 1.6° for the observation group and 4.6° ± 3.0° for the control group （t=-3.69, P=0.001）. Conclusions： The intraoperative digital guidance of the Verion system provided better toric IOL alignment than did the manual slit-lamp assisted alignment. The Verion system resulted in less postoperative TIA and less postoperative toric IOL misalignment than did the manual-marking technique.
作者
张蓓
邓国华
周栋
江一
Bei Zhang;Guohua Deng;Dong Zhou;Yi Jiang(Department of Ophthalmology, the Third People＇s Hospital of Changzhou, Changzhou 213003, China)
出处
《中华眼视光学与视觉科学杂志》
CAS
CSCD
2018年第4期227-231,共5页
Chinese Journal Of Optometry Ophthalmology And Visual Science
基金
常州市科技局科技支撑计划-社会发展（CE20175039）
江苏省常州市卫计委重大科技项目（ZD201511）
常州市科技局指导项目（2016356）
