Haddad Jorge Selem, Barnwell Eliza, Rocha Karolinne Maia, Ambrosio Renato, Waring Iv George O
Storm Eye Institute, Medical University of South Carolina, Charleston, SC, USA.
Universidade Federal de São Paulo, São Paulo, Brazil.
Clin Ophthalmol. 2020 Feb 4;14:353-358. doi: 10.2147/OPTH.S238112. eCollection 2020.
To compare biometry measurements obtained by a partial interferometer biometer (IOLMaster 500) to the new Scheimpflug tomography with an integrated axial length biometer module (Pentacam AXL).
Cataract patients who underwent biometric measurements with the IOL Master 500 and the Pentacam AXL from July to November 2017 were enrolled in this study. Comparisons were performed for axial length (AL), keratometry (K), and anterior chamber depth (ACD). The Pearson correlation coefficient and the 95% limits of agreement (LoA) were calculated. Paired Student's -tests and Bland-Altman plots were used to assess the differences between devices.
One hundred and sixty-six eyes of 92 patients were analyzed. There were no statistically significant differences in AL (p=0.558) or flat K (p=0.196) values between the IOL Master 500 and Pentacam AXL measurements. Statistically significant differences were found between the two devices with respect to steep K, ACD, and mean K measurements (p<0.001).
Both devices provided similar measurements of AL and flat K, though there were statistically significant differences in ACD, steep K, and mean K measurements.
比较部分干涉仪生物测量仪（IOLMaster 500）与带有集成眼轴长度生物测量模块的新型Scheimpflug断层扫描仪（Pentacam AXL）所获得的生物测量结果。
纳入2017年7月至11月期间使用IOL Master 500和Pentacam AXL进行生物测量的白内障患者。对眼轴长度（AL）、角膜曲率（K）和前房深度（ACD）进行比较。计算Pearson相关系数和95%一致性界限（LoA）。采用配对t检验和Bland-Altman图评估两种设备之间的差异。
分析了92例患者的166只眼。IOL Master 500和Pentacam AXL测量的AL（p = 0.558）或平坦K值（p = 0.196）之间无统计学显著差异。两种设备在陡峭K、ACD和平均K测量方面存在统计学显著差异（p < 0.001）。
两种设备提供的AL和平坦K测量结果相似，尽管在ACD、陡峭K和平均K测量方面存在统计学显著差异。
