有晶状体眼后房型人工晶状体植入矫正高度近视眼手术前后眼轴变化对比分析  被引量:8

The analysis of axial length changes in the phakic eyes after posterior chamber implantation of lens to correct high myopia

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作  者:史铭宇[1] 孔珺[1] 张劲松[1] 

机构地区:[1]中国医科大学眼科医院辽宁省晶状体重点实验室,110005

出  处:《中华眼科杂志》2011年第7期607-610,共4页Chinese Journal of Ophthalmology

摘  要:目的明确有晶状体眼后房型人工晶状体(ICL)植入术术前及术后眼轴长度在不同设定条件下是否存在差别,由此确定术后眼轴测量的方式,为ICL术后发生的白内障进行人工晶状体测算提供指导。方法选取自2008年5月至2009年12月间于中国医科大学眼科医院行ICL植入术患者70例(135只眼),年龄21~48岁,于术前1周及术后3个月分别行IOL-Master、A超测量眼轴长度。并设定IOL-Master测量方式为正常眼(即phakic眼)及人工晶体眼(PseudophakicPMMA)模式,A超为正常眼及特殊眼模式,其中特殊眼晶体声速设为1555m/s。将所得数据进行统计学分析,术前术后各变量采用配对样本t检验。结果术前以IOL.Master测量眼轴长度平均为(28.02±0.22)mm,A超测量眼轴长度平均为(27.81±0.22)mm;术后以IOL—Master正常眼模式及PseudophakicPMMA模式测量眼轴长度平均值分别为:(28.014-0.22)及(28.124-0.22)mm;术后以A超正常眼模式及特殊眼模式测量眼轴长度平均值分别为(27.82±0.22)、(26.40±0.21)mm。术前采用A超及IOL-Master测量眼轴,两者比较差异有统计学意义(t=9.722,P=0.000);术前采用A超,而术后IOL-MasterPhakic模式及PseudophakicPMMA模式测量眼轴,与术前相比差异均有统计学意义(t=-9.058,-14.646;P=0.000);术前采用IOL-Master,术后采用A超正常眼及特殊眼模式下的测量的结果与术前比较,差异均有统计学意义(t=10.832,61.470;P=0.000)。结论有晶状体眼后房型人工晶状体植入后对眼轴长度的测量根据选择测量方式的不同较之术前有一定的变化。建议有晶状体眼后房型人工晶状体植入矫正高度近视眼术前及术后对眼轴的测量尽量采用IOL-Master正常眼模式,如因白内障造成IOL-Master测量困难,则应采用A超正常模式测量眼轴。Objective To definitute axial length measuring mode of the phakic eyes after posterior chamber implantation of lens. Methods All patients came from the Ophthalmology Hospital of China Medical University. Seventy patients with 135eyes, aged 21-48 years old. Among this group 28 were male,53 eyes;42 were female, 82 eyes. A-ultrasound and IOL-Master was used to measure axial length one week before preoperative and three months after ICL implantation. There are two measuring mode in A-ultrasound and IOL-Master: normal and special. All the results were analysed by the SPSSll. 5 statistical methods. Results (1)preoperative AXL of A-ultrasound and IOL-Master average are: (27. 81 _± 0.22 )ram, (28.02 ± 0. 22) mm; ( 2 ) postoperative AXL of phakic and Pseudophakic PMMA mode of IOL-Master average are: (28.01 ±0. 22)mm, (28.12 ±0.22)mm; (3) postoperative AXL of normal and special mode of A-ultrasound average are : ( 27. 82± 0. 22) ram, (26.40 ± 0. 21 ) mm. Conclusion According to the different meansuring mode, there are some difference of AXL between the preoperative and postoperative ICL. The more accurately meansuring mode is IOL-Master phakic mode before and after operation. A-ultrasound normal mode can be used if the lens become so turbid that the AXL can't be obtained by IOL-Master.

关 键 词: 超声检查 有晶状体眼人工晶状体植入术 近视 

分 类 号:R779.6[医药卫生—眼科]

 

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