中国实用眼科杂志
中國實用眼科雜誌
중국실용안과잡지
CHINESE JOURNAL OF PRACTICAL OPHTHALMOLOGY
2008年
9期
923-925
,共3页
周炜%何正瑞%郑洁%黄蕊
週煒%何正瑞%鄭潔%黃蕊
주위%하정서%정길%황예
LASIK%角膜%眼压
LASIK%角膜%眼壓
LASIK%각막%안압
LASIK%Cornea%IOP
目的 分析近视眼LASIK手术后用非接触眼压计测量眼压降低的原因.方法 660只眼接受过LASIK手术的近视眼入选本研究.对其术前和术后3月的眼压(IOP)、中央角膜厚度(CCT)和角膜屈光度(CRP)资料用SPSS 13.0做统计学分析.术前和术后的同项计量资料做配对t检验,眼压对中央角膜厚度和角膜屈光度做相关性分析,中度线性相关者(r≥0.4,P<0.001)建立直线回归方程.结果 LASIK术后660只眼IOP平均下降(5.01±2.23)mmHg(t=57.736P=0.000),CCT平均减少(69.4±26.12)μm(t=68.255 P=0.000),CRP平均减少(4.37±1.72)D(t=65.140P=0.000).术前IOP对CRP和CCT的直线回归方程为:Y(IOP)=3.119-0.204X1(CRP)+0.040X2(CCT),R2=0.251,剩余标准差(Sy·x)=2.215.术后IOP对CRP和CCT的回归方程为:Y(IOP)=1.981-0.017X1(CRP)+0.021X2(CCT),R2=0.277,(Sy·x)=1.474.CCT每减少21μm,IOP下降1 mmHg.结论 近视眼LASIK术后NTC测量眼压下降的主要原因是角膜减薄所致.
目的 分析近視眼LASIK手術後用非接觸眼壓計測量眼壓降低的原因.方法 660隻眼接受過LASIK手術的近視眼入選本研究.對其術前和術後3月的眼壓(IOP)、中央角膜厚度(CCT)和角膜屈光度(CRP)資料用SPSS 13.0做統計學分析.術前和術後的同項計量資料做配對t檢驗,眼壓對中央角膜厚度和角膜屈光度做相關性分析,中度線性相關者(r≥0.4,P<0.001)建立直線迴歸方程.結果 LASIK術後660隻眼IOP平均下降(5.01±2.23)mmHg(t=57.736P=0.000),CCT平均減少(69.4±26.12)μm(t=68.255 P=0.000),CRP平均減少(4.37±1.72)D(t=65.140P=0.000).術前IOP對CRP和CCT的直線迴歸方程為:Y(IOP)=3.119-0.204X1(CRP)+0.040X2(CCT),R2=0.251,剩餘標準差(Sy·x)=2.215.術後IOP對CRP和CCT的迴歸方程為:Y(IOP)=1.981-0.017X1(CRP)+0.021X2(CCT),R2=0.277,(Sy·x)=1.474.CCT每減少21μm,IOP下降1 mmHg.結論 近視眼LASIK術後NTC測量眼壓下降的主要原因是角膜減薄所緻.
목적 분석근시안LASIK수술후용비접촉안압계측량안압강저적원인.방법 660지안접수과LASIK수술적근시안입선본연구.대기술전화술후3월적안압(IOP)、중앙각막후도(CCT)화각막굴광도(CRP)자료용SPSS 13.0주통계학분석.술전화술후적동항계량자료주배대t검험,안압대중앙각막후도화각막굴광도주상관성분석,중도선성상관자(r≥0.4,P<0.001)건립직선회귀방정.결과 LASIK술후660지안IOP평균하강(5.01±2.23)mmHg(t=57.736P=0.000),CCT평균감소(69.4±26.12)μm(t=68.255 P=0.000),CRP평균감소(4.37±1.72)D(t=65.140P=0.000).술전IOP대CRP화CCT적직선회귀방정위:Y(IOP)=3.119-0.204X1(CRP)+0.040X2(CCT),R2=0.251,잉여표준차(Sy·x)=2.215.술후IOP대CRP화CCT적회귀방정위:Y(IOP)=1.981-0.017X1(CRP)+0.021X2(CCT),R2=0.277,(Sy·x)=1.474.CCT매감소21μm,IOP하강1 mmHg.결론 근시안LASIK술후NTC측량안압하강적주요원인시각막감박소치.
Objective To investigate the reason of intraocular pressure (lOP)decrease measuring by non-contact tonometry (NCT)after LASIK for myopia. Methods Six hundreds and sixty myopias underwent LASIK were enrolled in the study. Their data of IOP,central corneal thickness (CCT)and corneal refractive power (CRP) before LASIK and at 3 months were analyzed by SPSS13.0. The same kind data before and after LASIK were evaluated by the paired, 2-tailed t test. Multiple linear regression and correlation analyses were performed. If the correlation coefficient r≥0.4, P<0.001, an linear regression equation is established. Results Postoperative average IOP, CCT and CRP of 660 eyes decreased by (5.01±2.23 )mmHg(t=57.736 P=0.000), (69.4±26.12)μm (t=68.255 P=0.000)and(4.37±1.72)D (t=65.140 P =0.000),respectively. Multiple linear regression equation between IOP, CRP and CCT is Y(IOP)=3.119-0.204X1(CRP)+0.040X2 (CCT), R2=0.251,Sy.x=2.215,preoperatively, and Y (IOP)=1.981-0.017 X1 (CRP)+0.021X2 (CCT),R2=0.277,Sy.x=1.474,postoperatively. CCT reduce every 21μ m, IOP drop 1 mmHg. Conclusions The drop in IOP after lasik formyopia is mainly related to the reduction in CCT.
