School of Biomedical Sciences, University of Ulster, Coleraine, United Kingdom.
J Refract Surg. 2010 Aug;26(8):605-8. doi: 10.3928/1081597X-20100407-02.
To compare higher order aberrations measured with the NIDEK OPD-Scan and AMO WaveScan.
Third- to sixth-order higher order aberrations were measured in 1072 eyes using the OPD-Scan and WaveScan. Means, standard deviations, confidence intervals, limits of agreement, and intraclass correlation coefficients (ICC) were calculated.
Aberrations of greatest magnitude with the OPD-Scan were Z-³/₃ (-0.113 +/- 0.243 μm), Z⁰/₄ (0.073 +/- 0.137 μm), and Z-¹/₃(-0.058 +/- 0.165 μm), and with the WaveScan, 7-³/₃ (-0.054 +/- 0.103 μm), Z⁰/₄ (0.049 +/- 0.083 μm), and Z¹/₃ (-0.017 +/- 0.100 μm). The largest difference in magnitude between the two aberrometers was with Zernike polynomial Z-³/₃ (-0.060 +/- 0.205 μm). Medium consistency (0.6 < ICC < 0.8) was found between the two instruments for Z-¹/₃ and Z⁰/₄. All other Zernike polynomials had a poor consistency (ICC < 0.6) including the total root-mean-square (RMS) higher order aberrations.
Poor consistency was found for all aberrations except Z-¹/₃and Z⁰/₄, which demostrated medium consistency. Expected aberration reference values are reported for both instruments.
比较 NIDEK OPD-Scan 和 AMO WaveScan 测量的高阶像差。
使用 OPD-Scan 和 WaveScan 测量 1072 只眼的三阶至六阶高阶像差。计算平均值、标准差、置信区间、一致性界限和组内相关系数（ICC）。
OPD-Scan 测量的最大像差为 Z-³/₃（-0.113 +/- 0.243 μm）、Z⁰/₄（0.073 +/- 0.137 μm）和 Z-¹/₃（-0.058 +/- 0.165 μm），而 WaveScan 测量的最大像差为 7-³/₃（-0.054 +/- 0.103 μm）、Z⁰/₄（0.049 +/- 0.083 μm）和 Z¹/₃（-0.017 +/- 0.100 μm）。两种像差仪之间幅度差异最大的是 Zernike 多项式 Z-³/₃（-0.060 +/- 0.205 μm）。两种仪器之间 Z-¹/₃和 Z⁰/₄的一致性中等（0.6 < ICC < 0.8）。其他所有 Zernike 多项式的一致性均较差（ICC < 0.6），包括总均方根（RMS）高阶像差。
除 Z-¹/₃和 Z⁰/₄外，所有像差的一致性均较差，而这两种像差表现出中等一致性。报告了两种仪器的预期像差参考值。
