摘要
目的比较2.2 mm微切口与3.0 mm标准切口的超声乳化白内障术后角膜生物力学的变化。方法前瞻性随机对照研究。将洛阳市中心医院2017年8月至2018年3月年龄相关性白内障76例(76眼)随机分成两组:研究组,2.2 mm微切口组,38例;对照组,3.0 mm标准切口组,38例。术后随访4周,比较两组角膜生物力学指标。结果术后1 d,两组的角膜滞后性均较术前降低,差异有统计学意义(研究组:t=2.67,P=0.009;对照组:t=4.18,P<0.001)。研究组角膜滞后性在术后1周恢复至术前水平(t=1.56,P=0.123),而对照组术后2周恢复至术前水平(t=0.55,P=0.588);术前和术后角膜阻力因子相比无明显改变(研究组:t=0.15,P=0.880;对照组:t=0.57,P=0.569)。研究组术后1 d角膜补偿眼压和Goldman相关眼压升高(t=-3.25,P=0.002;t=-3.45,P=0.001),术后1周恢复至术前水平。对照组术后1 d和1周角膜补偿眼压和Goldman相关眼压升高,术后2周恢复至术前水平。结论2.2 mm微切口白内障手术和3.0 mm标准切口手术均会导致角膜生物力学特征改变。但微切口白内障手术术后恢复较快。
Objective To compare the changes in corneal biomechanics measured by ocular response analyzer(ORA)after 2.2 mm microincision and 3.0 mm standard incision phacoemulsification.Methods This was a randomized controlled study.A total of 76 eyes of 76 cases with age-related cataract from Aug.2017 to Mar.2018 in Luoyang Central Hospital were included and all cases were randomly divided into two groups:38 cases in the study group with 2.2 mm microincision,and 38 cases in the control group with 3.0 mm standard incision.The follow-up time was 4 weeks.All parameters of the corneal biomechanical properties of two groups were compared.Results Corneal hysteresis decreased at 1 day after operation in both groups(Study group:t=2.67,P=0.009;Control group:t=4.18,P<0.001).The corneal hysteresis returned to the preoperative level at 1 week in the study group(t=1.56,P=0.123),and which returned to normal at 2 weeks in the control group(t=0.55,P=0.588);there was no significant change in corneal resistance factor values(Study group:t=0.15,P=0.880;Control group:t=0.57,P=0.569).In the study group,mean corneal-compensated intraocular pressure and Goldmann-correlated intraocular pressure increased at 1 day postoperatively(t=-3.25,P=0.002;t=-3.45,P=0.001),and which returned to preoperative level at 1 week.In the control group,corneal-compensated intraocular pressure and Goldmann-correlated intraocular pressure increased at 1 day and 1 week postoperatively,and which returned to preoperative level at 2 weeks after operation.Conclusion The 2.2 mm microincision phacoemulsification and 3.0 mm standard incision phacoemulsification can both change the corneal biomechanics.The corneal biomechanics recover faster in 2.2 mm microincision phacoemulsification.
作者
李红霞
樊冬生
Li Hongxia;Fan Dongsheng(Department of Ophthalmology,Luoyang Central Hospital Affiliated to Zhengzhou University,Luoyang 471000,China)
出处
《中华眼外伤职业眼病杂志》
2022年第3期198-202,共5页
Chinese Journal of Ocular Trauma and Occupational Eye Disease
关键词
超声乳化术
切口
微
角膜
2.2
mm
特征
角膜生物力学
滞后性
角膜
Phacoemulsification,microincision,cornea,2.2 mm
Properties,biomechanical,corneal
Hysteresis,corneal