CAJ | 학술논문

目的：评估一种最新的光学低相干反射测量仪( Lenstar LS900? version 1.10)对学龄儿童的眼球生物测量结果的重复性,将其测量值与光学相干生物测量仪( IOL Master?500 version 7.1)的测量结果进行比较。 　　方法：前瞻性观察比较分别由Lenstar和IOL Master测量的每个受检者右眼的眼球生物学参数。使用变异系数( coefficient of variation,CV)评价Lenstar测量结果的重复性,应用Bland-Altman图对Lenstar和IOL Master的测量数据进行一致性评价。 　　结果：本研究纳入了110个健康的学龄儿童,平均年龄10.9±2.0岁(年龄6~15岁),54.5%为女性。 Lenstar测量结果的重复性很高,其中眼轴长度( axial length, AL)的CV值最小( CV<0.1%)。 Lenstar与IOL Master的测量结果比较,AL(23.90±1.28 vs 23.88±1.27mm, P<0.001),前房深度(anterior chamber depth, ACD)(3.62±0.26 vs 3.58±0.25mm, P<0.001)和最大屈光力主子午线上角膜曲率半径CR2(7.58±0.27 vs 7.56±0.27mm, P<0.001)均略长。 Lenstar和IOL Master测量数据的95%的一致性界限(limits of agreement, LoA)从小到大±次为-0.025至0.053mm(AL),-0.047至0.057mm(最小屈光力主子午线上角膜曲率半径CR1),-0.057至0.102mm(CR2)和-0.083至0.152mm(ACD)。 　　结论：对于学龄儿童,Lenstar可提供重复性很好的眼球生物测量数据(包括AL、ACD和角膜曲率测量值),这些数据与IOL Master的测量结果之间具有很好的一致性。
목적：평고일충최신적광학저상간반사측량의( Lenstar LS900? version 1.10)대학령인동적안구생물측량결과적중복성,장기측량치여광학상간생물측량의( IOL Master?500 version 7.1)적측량결과진행비교。 　　방법：전첨성관찰비교분별유Lenstar화IOL Master측량적매개수검자우안적안구생물학삼수。사용변이계수( coefficient of variation,CV)평개Lenstar측량결과적중복성,응용Bland-Altman도대Lenstar화IOL Master적측량수거진행일치성평개。 　　결과：본연구납입료110개건강적학령인동,평균년령10.9±2.0세(년령6~15세),54.5%위녀성。 Lenstar측량결과적중복성흔고,기중안축장도( axial length, AL)적CV치최소( CV<0.1%)。 Lenstar여IOL Master적측량결과비교,AL(23.90±1.28 vs 23.88±1.27mm, P<0.001),전방심도(anterior chamber depth, ACD)(3.62±0.26 vs 3.58±0.25mm, P<0.001)화최대굴광력주자오선상각막곡솔반경CR2(7.58±0.27 vs 7.56±0.27mm, P<0.001)균략장。 Lenstar화IOL Master측량수거적95%적일치성계한(limits of agreement, LoA)종소도대±차위-0.025지0.053mm(AL),-0.047지0.057mm(최소굴광력주자오선상각막곡솔반경CR1),-0.057지0.102mm(CR2)화-0.083지0.152mm(ACD)。 　　결론：대우학령인동,Lenstar가제공중복성흔호적안구생물측량수거(포괄AL、ACD화각막곡솔측량치),저사수거여IOL Master적측량결과지간구유흔호적일치성。
AIM:To evaluate the repeatability of ocular biometrical measurements obtained from the optical low-coherence reflectometry (Lenstar LS900? version 1. 10), as well as its agreement with the partial coherence interferometry (IOL Master? 500 version 7. 1) in Chinese school-aged children. METHODS: A prospective comparison of ocular biometrical measurements made by the Lenstar and IOL Master was performed on right eye of each participant. The intraobserver repeatability of Lenstar was assessed by coefficient of variation ( CV ) . Agreement was analyzed using Bland-Altman plots. RESULTS:The mean age of the 110 subjects ( range 6-15y) was 10. 9±2. 0y, and 54. 5% were female. The Lenstar yielded repeatable measurements, with the smallest CV was obtained for axial length ( AL) ( CV<0. 1%). The Lenstar produced a greater mean value for AL (23. 90±1.28 vs 23. 88±1. 27mm, P<0. 001), anterior chamber depth (ACD) (3. 62±0. 26 vs 3. 58±0. 25mm, P<0. 001), and the steepest corneal radius of curvature (CR2) (7. 58±0. 27 vs 7. 56±0. 27mm, P<0. 001) than IOL Master. The 95% limits of agreement ( LoA ) between the two instruments were-0. 025 to 0. 053mm for AL, -0. 047 to 0. 057mm for the flattest corneal radius of curvature ( CR1 ), - 0. 057 to 0.102mm for CR2, and -0. 083 to 0. 152mm for ACD. CONCLUSIONS: The Lenstar yielded excellent repeatability results of AL, ACD, and corneal curvature measurements, which were interchangeable with the IOL Master measurements in school-aged children.