Lenstar LS900与IOLMaster测量眼前节生物参数及人工晶状体度数的比较  

Comparison of anterior segment biometry and intraocular lens power measured by Lenstar LS900 and IOLMaster

作　　者：叶向彧[1] 纪建丽[1] 张广斌[1] 王乐[1] 毛益辉[1] 何雪洪[1] 

机构地区：[1]厦门大学附属厦门眼科中心,福建省厦门市361001

出　　处：《眼科新进展》2011年第11期1039-1041,1045,共4页Recent Advances in Ophthalmology

摘　　要：目的精确的眼生物测量对人工晶状体(intraocular lens,IOL)度数计算至关重要,尤其是眼轴及角膜曲率的测量。本研究将对比新一代光学低相干反射生物测量仪Lenstar LS900(Haag-Streit)与IOLMaster对眼前节参数及IOL测算的差异。方法应用Lenstar LS900和IOLMaster分别对30例(60眼)老年性白内障患者进行眼轴长度、前房深度、角膜曲率和散光轴方面的测量比较;分别利用2种设备计算IOL度数,均选用SRK/T计算公式和SA60AT(Alcon)IOL,在确定同一度数的前提下比较目标屈光度的差异。结果 Lenstar LS900和IOLMaster测量眼轴长度、前房深度、平均角膜曲率、陡峭轴角膜曲率之间差异均无统计学意义(均为P>0.05),且均具有良好的相关性(相关系数分别为0.999、0.955、0.936、0.845),而两种设备测得陡峭轴之间相关欠佳(r=0.579)。Lenstar LS900和IOLMaster所获得的术后目标屈光度值分别为(-0.02±0.17)D和(-0.07±0.23)D,差异无统计学意义(P>0.05)。Bland-Altman分析显示,2种设备获得的目标屈光值具有良好的一致性。结论 Lenstar LS900和IOLMaster两种设备测量眼前节参数及IOL度数具有良好的一致性。同时,Lenstar LS900还可以快速、准确的为白内障患者和屈光医师提供更多的眼生物参数。Objective To compare the difference of anterior segment biometry and intraocular lens（IOL） power measured by a new noncontact optical biometer Lenstar LS900（Haag-Streit） using optical low-coherence reflectometry and IOLMaster.Methods Biometry measurements in 60 eyes of 30 patients scheduled for cataract surgery by the same examiner with Lenstar LS900 and IOLMaster,the axial length（AL）,anterior chamber depth（ACD） and keratometric（K） were compared,IOL power for AcrySof SA60AT（Alcon）measure by two devices using SRK/T formulas was calculated,and the difference of targeted diopter under same IOL power was compared.Results There was no statistical difference in AL,ACD,average K and steep K measured by Lenstar LS900 and IOLMaster（all P〉0.05）,and they also showed the excellent relation（r=0.999,0.955,0.936,0.845） except for the steep axis（r=0.579）.The targeted diopter calculated with Lenstar LS900 and IOLMaster were（-0.02±0.17） D and（-0.07±0.23）D,respectively,there was no statistical difference（P〉0.05）.Bland-Altman plots showed excellent agreement in IOL power measurements as determined by SRK/T formulas by Lenstar LS 900 and IOLMaster.Conclusion The anterior segment biometry and IOL power measured by Lenstar LS900 and IOLMaster have better agreement.Lenstar LS900 is an accurate and fast instrument,which can provide the additional information for any cataract or refractive surgeon.

关 键 词：白内障 眼生物测量 LENSTAR LS900 IOLMASTER 人工晶状体 

分 类 号：R776.4[医药卫生—眼科]