目的：比较新型扫频源眼前节相干光层析成像仪(CASIA2)与三维眼前节分析仪(Pentacam)在有晶状体眼后房型人工晶状体(ICL)植入术后拱高及其相关参数测量中的差异性、相关性和一致性。

方法：采用横断面研究，纳入2021年8月至2023年8月爱尔眼科四川眼科医院屈光手术科行ICL植入术的近视患者。收集患者ICL术后1 mo CASIA2和Pentacam测量的拱高(Vault)、角膜厚度(CCT)、瞳孔直径、前房深度(ACD)及角膜内皮到ICL前表面距离(ACD-ICL)。分析两种仪器测量数据的相关性、差异性、一致性。

结果：本研究共纳入近视患者100例187眼。CASIA2和Pentacam测量CCT、ACD、瞳孔直径、ACD-ICL和拱高均有差异(均P<0.05)。相关性分析显示两种仪器测量CCT、ACD-ICL、拱高、ACD和瞳孔直径均呈正相关(r/r_s=0.99、0.91、0.91、0.71、0.49，均P<0.05)。Bland-Altman分析显示两种仪器测量CCT一致性良好，其余参数一致性欠佳。

结论：CASIA2测得的拱高数据略高于Pentacam，除设备工作原理差异外，考虑为检查光源引起的瞳孔变化及调节所致。CASIA2测得的拱高数据更接近自然状态，Pentacam更接近强光状态。两种仪器联合使用可为临床提供更准确的评估。

METHODS: A cross-sectional study was conducted on myopic patients who underwent ICL implantation at the Department of Refractive Surgery, Sichuan Eye Hospital, between August 2021 and August 2023. At 1 mo postoperatively, vault, central corneal thickness(CCT), pupil diameter, anterior chamber depth(ACD), and the distance from the corneal endothelium to the anterior surface of the ICL(ACD-ICL)were measured using both CASIA2 and Pentacam. The correlation, differences and agreement of these parameters were analyzed from the two devices.

RESULTS: A total of 100 myopia patients(187 eyes)were included. Significant differences were found between CASIA2 and Pentacam in the measurements of CCT, ACD, pupil diameter, ACD-ICL, and vault(all P<0.05). The correlation analysis showed that the CCT, ACD-ICL, vault, ACD and pupil diameter measured by the two devices were positively correlated(r/r_s=0.99, 0.91, 0.91, 0.71, and 0.49, all P<0.05). Bland-Altman analysis showed excellent agreement for CCT, but less agreement for the other parameters.

CONCLUSION: CASIA2 produces marginally higher postoperative vault readings than Pentacam. Besides instrumental design, the discrepancy is likely attributable to pupillary constriction and accommodation induced by Pentacam's brighter illumination. CASIA2 may better reflect physiologic conditions, whereas Pentacam reflects bright-light status. Combined use of both devices provides clinicians with more comprehensive and accurate post-ICL assessments.