Department of Ophthalmology, University of Health Sciences, Dıskapı Yıldırım Beyazıt Training and Research Hospital, Ankara, Turkey.
Kaskaloglu Eye Hospital, Izmir, Turkey.
Int Ophthalmol. 2023 Feb;43(2):475-482. doi: 10.1007/s10792-022-02444-w. Epub 2022 Jul 31.
To compare the difference and agreement of axial length (AL) and anterior segment parameters obtained from the MYAH device with Pentacam AXL and IOLMaster 700 in myopic children.
The study included 60 eyes of 60 myopic children. AL, keratometry (K), and horizontal corneal diameter (CD) were measured with Pentacam AXL, IOLMaster 700, and MYAH, respectively. The Friedman test was used to assess the differences. The Intraclass Correlation Coefficient (ICC) and Bland-Altman plots were used to assess the consistency of measurements.
The mean age was 10.2 ± 1.8 years (7-16 years). No statistically significant difference was determined between the Pentacam AXL, IOLMaster 700, and MYAH devices in terms of mean AL values (23.61 ± 1.42, 23.62 ± 1.45, 23.61 ± 1.42, respectively) (p = 0.06). The difference between devices in the mean steep K, flat K, mean K, and CD was statistically significant but clinically insignificant (steep K; 44.45 ± 1.25, 44.59 ± 1.23, 44.51 ± 1.24, flat K; 43.29 ± 1.28, 43.43 ± 1.29, 43.35 ± 1.30, mean K; 43.85 ± 1.21, 44.00 ± 1.19, 43.94 ± 1.20, and CD; 11.90 ± 0.34, 12.11 ± 0.38, 11.96 ± 0.31, respectively; p < 0.05). ICC and Bland-Altman plot analysis revealed a high correlation between the three devices in AL, steep K, flat K, mean K, and CD measurements.
There was a quite good agreement between the MYAH, Pentacam AXL, and IOLMaster 700 devices regarding AL and anterior segment parameters. MYAH provides reliable measurements and will be a good option in the diagnosis of and follow-up with myopic children.
比较 MYAH 设备与 Pentacam AXL 和 IOLMaster 700 在近视儿童中测量的眼轴（AL）和眼前节参数的差异和一致性。
本研究纳入 60 例（60 只眼）近视儿童。分别用 Pentacam AXL、IOLMaster 700 和 MYAH 测量 AL、角膜曲率（K）和水平角膜直径（CD）。采用 Friedman 检验评估差异，采用组内相关系数（ICC）和 Bland-Altman 图评估测量值的一致性。
平均年龄为 10.2±1.8 岁（7-16 岁）。Pentacam AXL、IOLMaster 700 和 MYAH 设备在平均 AL 值（分别为 23.61±1.42、23.62±1.45、23.61±1.42）方面无统计学差异（p=0.06）。设备之间在平均陡峭 K、平坦 K、平均 K 和 CD 方面的差异具有统计学意义，但临床意义不大（陡峭 K：44.45±1.25、44.59±1.23、44.51±1.24，平坦 K：43.29±1.28、43.43±1.29、43.35±1.30，平均 K：43.85±1.21、44.00±1.19、43.94±1.20，CD：11.90±0.34、12.11±0.38、11.96±0.31；p<0.05）。ICC 和 Bland-Altman 图分析显示，这三种设备在 AL、陡峭 K、平坦 K、平均 K 和 CD 测量值之间具有高度相关性。
在 AL 和眼前节参数方面，MYAH 与 Pentacam AXL 和 IOLMaster 700 设备之间具有相当好的一致性。MYAH 提供可靠的测量值，是诊断和随访近视儿童的良好选择。
