两种光学生物测量仪在中国青少年人群中应用的比较

发布时间：2018-05-08 14:11

本文选题：SW- + 重复性　；参考：《眼科新进展》2017年09期

【摘要】：目的评估两种光学生物测量仪(Lenstar LS900~汶与SW-9000)对青少年眼球生物测量结果的重复性,并比较两种仪器测量值的一致性。方法采用前瞻性研究,纳入65例屈光不正患者,分别用SW-9000与Lenstar LS900~汶进行右眼眼球生物测量,应用单因素方差分析评估仪器的可重复性,应用Bland-Altman散点图对两种仪器测量值进行一致性评价。结果 Lenstar LS900~汶测量指标AL、K1、K2、CCT、AD、LT、PD的重复性良好,ICC均大于0.90;WTW略差,但仍大于0.88。SW-9000测量指标AL、K1、K2、CCT的重复性良好,ICC均大于0.9,其余参数重复性较差。将两种仪器重复性均良好的AL、K1、K2、CCT分别进行比较,发现SW-9000所测AL、CCT比Lenstar LS900~汶略长,且差异均有统计学意义(均为P0.05);而K1、K2均无明显差异(均为P0.05)。此外两种仪器间AL、K1、K2、CCT均存在密切的线性相关(均为r0.97,均为P0.01)。Bland-Altman散点图显示,两种仪器测量指标的95%Lo A分别为AL:-0.057~0.133 mm;K1:-0.456~0.369 D;K2:-0.388~0.549 D;CCT:-3.483~8.016μm。结论对于8~18岁青少年人群,Lenstar LS900~汶与SW-9000眼球生物测量指标(包括AL、K1、K2、CCT)均具有良好的重复性,SW-9000与Lenstar LS900~汶测量参数AL、K1、K2、CCT相关性高,且4个参数95%Lo A在临床上可接受,一致性良好。
[Abstract]:Objective to evaluate the reproducibility of two optical biometrics, Lenstar LS900- and SW-9000, and to compare the consistency between the two instruments. Methods A prospective study was carried out in 65 patients with ametropia. SW-9000 and Lenstar LS900-1 were used to measure the right eye. The repeatability of the instrument was evaluated by single factor analysis of variance (ANOVA). The Bland-Altman scatter plot is used to evaluate the consistency of the measured values of the two instruments. Results the good reproducibility of Lenstar LS900- K2CCT1 / K2CCT / Lenstar was higher than that of 0.88.SW-9000, but the reproducibility of Lenstar was higher than that of 0.88.SW-9000, and the reproducibility of other parameters was not good. The other parameters were not repeatable, and the other parameters were worse than that of ACL K1 / K2CCT, and the reproducibility of all the other parameters was lower than that of ACL K1K2CCT, which was higher than that of 0.88.SW-9000. The results showed that SW-9000 was a little longer than that of Lenstar LS900-1, and the difference was statistically significant (both P0.05N and K1K2). In addition, there is a close linear correlation between the two instruments (both r0.97, 95%Lo A is AL:-0.057~0.133 K1: -0.456N 0.369DK 2- 0.388U 0.549 DCCT- 3.483U 8.016 渭 m.) the 95%Lo A of the two instruments is AL:-0.057~0.133 K1: -0.456N 0.369DK2- 0.388U 0.549 DCCT- 3.483U _ (8.016) 渭 m. Conclusion there is a good correlation between LS900-1 and SW-9000 (including ALK1K2CCT) and SW-9000 and Lenstar LS900- K2CCT, and the four parameters of 95%Lo A are acceptable and consistent in clinic.
【作者单位】：天津医科大学眼科医院天津医科大学眼科研究所;
【基金】：国家自然科学基金面上项目资助(编号:81570834)~~
【分类号】：R778

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