国际眼科杂志
國際眼科雜誌
국제안과잡지
INTERNATIONAL JOURNAL OF OPHTHALMOLOGY
2013年
12期
2396-2399
,共4页
白内障%预测误差%Lenstar%A型超声
白內障%預測誤差%Lenstar%A型超聲
백내장%예측오차%Lenstar%A형초성
cataract%prediction error%Lenstar%A-scan ultrasonography
目的:比较使用Lenstar和常规超声测算IOL度数在白内障术后的屈光预测误差(predictionerror,PE)。<br> 方法:回顾性分析2013-03/06于我院接受白内障手术的年龄相关性白内障患者的单眼数据。术前分别使用A超和角膜曲率计以及Lenstar测量眼生物参数,并使用SRK/T公式进行IOL度数的计算。所有纳入患者接受白内障摘除联合IOL植入术,术中IOL植入囊袋内。术后3mo进行检影验光。比较两种检查方法测量的眼轴及角膜平均曲率,统计分析患者术前及术后视力的变化,术后PE及PE绝对值(absolutevalueofPE,APE),对PE、APE与眼轴及曲率行相关性分析。<br> 结果:术前Lenstar测量眼轴为24.68±1.70mm,A超为24.42±1.65mm,两者间有统计学差异(t=-12.688,P<0.001),同时具有显著相关(r=0.992,P<0.001),两者95%LoA范围为-0.18~0.69mm。术前Lenstar测量角膜平均曲率为44.22±1.03D,曲率计测量值平均为44.19±1.04D,两种方法间无统计学差异(t=-1.241,P=0.217),两种方法间相关性具有统计学意义(r=0.963,P<0.001),95%LoA为-0.52~0.58D。术后LenstarPE为0.05±0.23D,常规超声测量PE为-0.35±0.76D,两者间有统计学差异(t=-5.494,P<0.001)。使用Lenstar和常规超声APE分别为0.18±0.14D和0.56±0.62D,两种方法间有统计学差异(t=6.379,P<0.001)。<br> 结论:Lenstar可进行精确的眼部生物参数测量,术后PE较常规超声明显降低,可用于白内障手术IOL度数的精确计算。
目的:比較使用Lenstar和常規超聲測算IOL度數在白內障術後的屈光預測誤差(predictionerror,PE)。<br> 方法:迴顧性分析2013-03/06于我院接受白內障手術的年齡相關性白內障患者的單眼數據。術前分彆使用A超和角膜麯率計以及Lenstar測量眼生物參數,併使用SRK/T公式進行IOL度數的計算。所有納入患者接受白內障摘除聯閤IOL植入術,術中IOL植入囊袋內。術後3mo進行檢影驗光。比較兩種檢查方法測量的眼軸及角膜平均麯率,統計分析患者術前及術後視力的變化,術後PE及PE絕對值(absolutevalueofPE,APE),對PE、APE與眼軸及麯率行相關性分析。<br> 結果:術前Lenstar測量眼軸為24.68±1.70mm,A超為24.42±1.65mm,兩者間有統計學差異(t=-12.688,P<0.001),同時具有顯著相關(r=0.992,P<0.001),兩者95%LoA範圍為-0.18~0.69mm。術前Lenstar測量角膜平均麯率為44.22±1.03D,麯率計測量值平均為44.19±1.04D,兩種方法間無統計學差異(t=-1.241,P=0.217),兩種方法間相關性具有統計學意義(r=0.963,P<0.001),95%LoA為-0.52~0.58D。術後LenstarPE為0.05±0.23D,常規超聲測量PE為-0.35±0.76D,兩者間有統計學差異(t=-5.494,P<0.001)。使用Lenstar和常規超聲APE分彆為0.18±0.14D和0.56±0.62D,兩種方法間有統計學差異(t=6.379,P<0.001)。<br> 結論:Lenstar可進行精確的眼部生物參數測量,術後PE較常規超聲明顯降低,可用于白內障手術IOL度數的精確計算。
목적:비교사용Lenstar화상규초성측산IOL도수재백내장술후적굴광예측오차(predictionerror,PE)。<br> 방법:회고성분석2013-03/06우아원접수백내장수술적년령상관성백내장환자적단안수거。술전분별사용A초화각막곡솔계이급Lenstar측량안생물삼수,병사용SRK/T공식진행IOL도수적계산。소유납입환자접수백내장적제연합IOL식입술,술중IOL식입낭대내。술후3mo진행검영험광。비교량충검사방법측량적안축급각막평균곡솔,통계분석환자술전급술후시력적변화,술후PE급PE절대치(absolutevalueofPE,APE),대PE、APE여안축급곡솔행상관성분석。<br> 결과:술전Lenstar측량안축위24.68±1.70mm,A초위24.42±1.65mm,량자간유통계학차이(t=-12.688,P<0.001),동시구유현저상관(r=0.992,P<0.001),량자95%LoA범위위-0.18~0.69mm。술전Lenstar측량각막평균곡솔위44.22±1.03D,곡솔계측량치평균위44.19±1.04D,량충방법간무통계학차이(t=-1.241,P=0.217),량충방법간상관성구유통계학의의(r=0.963,P<0.001),95%LoA위-0.52~0.58D。술후LenstarPE위0.05±0.23D,상규초성측량PE위-0.35±0.76D,량자간유통계학차이(t=-5.494,P<0.001)。사용Lenstar화상규초성APE분별위0.18±0.14D화0.56±0.62D,량충방법간유통계학차이(t=6.379,P<0.001)。<br> 결론:Lenstar가진행정학적안부생물삼수측량,술후PE교상규초성명현강저,가용우백내장수술IOL도수적정학계산。
AIM:To compare the prediction errors ( PE) in cataract surgery with Lenstar and conventional ultrasound. <br> METHODS: The data of age-related cataract patients were retrospectively analyzed from March, 2013 to June, 2013 in our hospital.Preoperative measurements of ocular biological parameters and calculation of intraocular lens ( IOL ) degree using SRK/T's formula with ultrasound, keratometry and Lenstar were performed. Cataract extraction combined with IOL implantation in capsule was taken in every patient. Retinoscopy was taken postoperatively after 3 months.Comparison of the two inspection methods for measuring axial length, mean corneal curvature and postoperative refractive PE and absolute value of PE ( APE) . <br> RESULTS:Preoperative axial length was 24.68±1.70mm and 24.42±1.65mm with Lenstar and ultrasound, respectively, and there was significant difference (t=-12.688, P<0.001) and significant correlation (r=0.992, P<0.001) between different measurement, and the 95% LoA was in the range between -0.18mm and 0.69mm. Preoperative corneal curvature was 44.22±1.03D and 44.19±1.04D with Lenstar and keratometry, respectively, there was no statistical differences between two methods ( t=-1.241, P=0.217), but was the significant correlation (r=0.963, P<0.001), and 95% LoA between 0.52D and 0.58D.PE was 0.05 ±0.23D and -0.35 ±0.76D with Lenstar and ultrasound, respectively (t=-5.494, P<0.001).APE were 0.18±0.14D and 0.56±0.62D with Lenstar and conventional ultrasound, respectively (t=6.379, P<0.001). <br> CONCLUSION: Accurate ocular biological parameters can be achieved with Lenstar, and postoperative PE is more precise with Lenstar compared with conventional ultrasound.Lenstar can be used for precise calculation of IOL degree in cataract operation.