Abstract：
BACKGROUND: To evaluate the agreement between the Goldman applanation tonometer (GAT), Tono-Pen, and noncontact tonometer (NCT) in the measurement of intraocular pressure (IOP) in pseudophakic children.
METHODS: The medical records of nonglaucomatous pseudophakic children between 2009 and 2019 were retrospectively analyzed. A total of 46 eyes of 23 patients operated for bilateral pediatric cataract were included in the study. The patients\' mean age was 13.4 ± 4.1 years. Central corneal thickness (CCT) and IOP values measured with the GAT, Tono-Pen, and NCT were recorded. Agreement between the tonometers was evaluated by intraclass correlation coefficients (ICC) and the Bland-Altman method.
RESULTS: The mean IOP of the 46 eyes included in the study was measured as 13.7 ± 2.3 mm Hg with the GAT, 16.0 ± 2.3 mm Hg with NCT, and 16.5 ± 2.3 mm Hg with the Tono-Pen (p < 0.001). There is no statistical difference between NCT and Tono-Pen measurements, while GAT measurements were significantly lower than those of the NCT and Tono-pen. ICC values showed fair agreement between NCT and Tono-Pen (ICC = 0.720), whereas there was poor agreement between GAT and NCT (ICC = 0.501) and Tono-pen (ICC = 0.314).
CONCLUSIONS: With all devices included in the study, thicker corneas were associated with higher IOP measurements. Although there was moderate agreement between the NCT and Tono-Pen, there was a statistically significant difference in the IOP values provided by the three devices. Our results suggest these devices should not be used interchangeably.
METHODS: The medical records of nonglaucomatous pseudophakic children between 2009 and 2019 were retrospectively analyzed. A total of 46 eyes of 23 patients operated for bilateral pediatric cataract were included in the study. The patients\' mean age was 13.4 ± 4.1 years. Central corneal thickness (CCT) and IOP values measured with the GAT, Tono-Pen, and NCT were recorded. Agreement between the tonometers was evaluated by intraclass correlation coefficients (ICC) and the Bland-Altman method.
RESULTS: The mean IOP of the 46 eyes included in the study was measured as 13.7 ± 2.3 mm Hg with the GAT, 16.0 ± 2.3 mm Hg with NCT, and 16.5 ± 2.3 mm Hg with the Tono-Pen (p < 0.001). There is no statistical difference between NCT and Tono-Pen measurements, while GAT measurements were significantly lower than those of the NCT and Tono-pen. ICC values showed fair agreement between NCT and Tono-Pen (ICC = 0.720), whereas there was poor agreement between GAT and NCT (ICC = 0.501) and Tono-pen (ICC = 0.314).
CONCLUSIONS: With all devices included in the study, thicker corneas were associated with higher IOP measurements. Although there was moderate agreement between the NCT and Tono-Pen, there was a statistically significant difference in the IOP values provided by the three devices. Our results suggest these devices should not be used interchangeably.
摘要：
背景：为了评估高盛压平眼压计（GAT）之间的协议，Tono-Pen,和非接触式眼压计（NCT）测量假晶状体患儿的眼内压（IOP）。
方法：回顾性分析2009-2019年非青光眼假晶状体患儿的病历资料。该研究包括23例双侧小儿白内障手术的46只眼。患者的平均年龄为13.4±4.1岁。中央角膜厚度（CCT）和眼压值用GAT测量，Tono-Pen,并记录NCT。通过组内相关系数（ICC）和Bland-Altman方法评估眼压计之间的一致性。
结果：使用GAT测量的46只眼的平均IOP为13.7±2.3mmHg，使用NCT时16.0±2.3mmHg,Tono-Pen和16.5±2.3mmHg(p<0.001)。NCT和Tono-Pen测量没有统计学差异，而GAT测量值显着低于NCT和Tono-pen。ICC值显示NCT和Tono-Pen之间的一致性(ICC=0.720)，而GAT和NCT(ICC=0.501)与Tono-pen(ICC=0.314)的一致性较差.
结论：研究中包括的所有设备，角膜较厚与较高的IOP测量值相关.尽管NCT和Tono-Pen之间达成了适度的协议，三台装置提供的IOP值在统计学上有显著差异.我们的结果表明，这些设备不应该互换使用。
方法：回顾性分析2009-2019年非青光眼假晶状体患儿的病历资料。该研究包括23例双侧小儿白内障手术的46只眼。患者的平均年龄为13.4±4.1岁。中央角膜厚度（CCT）和眼压值用GAT测量，Tono-Pen,并记录NCT。通过组内相关系数（ICC）和Bland-Altman方法评估眼压计之间的一致性。
结果：使用GAT测量的46只眼的平均IOP为13.7±2.3mmHg，使用NCT时16.0±2.3mmHg,Tono-Pen和16.5±2.3mmHg(p<0.001)。NCT和Tono-Pen测量没有统计学差异，而GAT测量值显着低于NCT和Tono-pen。ICC值显示NCT和Tono-Pen之间的一致性(ICC=0.720)，而GAT和NCT(ICC=0.501)与Tono-pen(ICC=0.314)的一致性较差.
结论：研究中包括的所有设备，角膜较厚与较高的IOP测量值相关.尽管NCT和Tono-Pen之间达成了适度的协议，三台装置提供的IOP值在统计学上有显著差异.我们的结果表明，这些设备不应该互换使用。
