新型SS-OCT与Scheimpflug眼前节分析仪测量年龄相关性白内障患者角膜屈光力及散光的一致性  

Consistency of corneal curvature and astigmatism measured by new swept-source optical coherence tomography and Scheimpflug anterior segment analyzer in patients with age-related cataract

作　　者：柴华[1] 郑吉琦 苏兰萍[1] Hua Chai;Ji-Qi Zheng;Lan-Ping(Su Cataract Rehabilitation Center,Gansu Province Rehabilitation Center Hospital,Lanzhou 730000,Gansu Province,China)

机构地区：[1]甘肃省康复中心医院白内障复明中心,甘肃省兰州市730000

出　　处：《国际眼科杂志》2023年第2期273-277,共5页International Eye Science

摘　　要：目的:探讨年龄相关性白内障患者应用新型扫频源光学相干断层扫描仪(SS-OCT)与Scheimpflug眼前节分析仪测量角膜屈光力、角膜散光的Bland-Altman分析。方法:选取2021-01/12我院收治的年龄相关性白内障患者177例282眼。分别采用SS-OCT与Scheimpflug眼前节分析仪测量角膜前表面、后表面、全角膜的陡峭轴屈光力(Ks)、平坦轴屈光力(Kf)、平均角膜屈光力(Km)、角膜散光、散光轴向。所有参数进行配对样本t检验、组内重复性检验、Pearson相关性和Bland-Altman一致性分析。结果:SS-OCT与Scheimpflug眼前节分析仪测量的角膜前表面屈光力Ks、Kf、Km均无差异(P>0.05)。Scheimpflug眼前节分析仪测量的角膜后表面以及全角膜屈光力Ks、Kf、Km均大于SS-OCT测量值(P<0.05)。SS-OCT与Scheimpflug眼前节分析仪测量的角膜前表面、角膜后表面以及全角膜的散光度数和轴向均无差异(P>0.05)。所有参数的组内相关系数(ICC)均大于0.88,提示组内重复性较好。SS-OCT与Scheimpflug眼前节分析仪测量的角膜前表面、角膜后表面以及全角膜的Ks、Kf、Km、散光度数和轴向均呈正相关(P<0.05)。Bland-Altman一致性分析显示,SS-OCT与Scheimpflug眼前节分析仪测量的角膜前表面、角膜后表面以及全角膜的Ks、Kf、Km、散光度数和轴向的一致性较好(P<0.05)。结论:新型SS-OCT与Scheimpflug眼前节分析仪测量的角膜屈光力、角膜散光参数具有高度一致性,可适用于年龄相关性白内障患者角膜屈光力及角膜散光的诊断。AIM:To explore Bland-Altman analysis of corneal curvature and astigmatism measured by new swept-source optical coherence tomography(SS-OCT)and Scheimpflug anterior segment analyzer in patients with age-related cataract.METHODS:A total of 177 patients(282 eyes)with age-related cataract admitted to the hospital between January and December 2021 were enrolled.The steep-axis curvature(Ks),flat-axis curvature(Kf),mean corneal curvature(Km),corneal astigmatism and astigmatism axis of anterior corneal surface,posterior surface and the whole cornea were measured by SS-OCT and Scheimpflug anterior segment analyzer respectively.All parameters were detected by paired sample t-test,intra-group repeatability test,Pearson correlation and Bland-Altman consistency analysis.RESULTS:There was no significant difference in Ks,Kf and Km of anterior corneal surface measured by SS-OCT and Scheimpflug anterior segment analyzer(P>0.05).Ks,Kf and Km of posterior corneal surface and whole cornea measured by Scheimpflug anterior segment analyzer were all greater than those measured by SS-OCT(P<0.05).There was no significant difference in astigmatism and axial values of anterior corneal surface,posterior surface and whole cornea measured by SS-OCT and Scheimpflug anterior segment analyzer(P>0.05).The intraclass correlation coefficient(ICC)of all parameters was greater than 0.88,indicating a good intra-group repeatability.Ks,Kf,Km,astigmatism and axis of anterior corneal surface,posterior surface and whole cornea measured by SS-OCT were positively correlated with those measured by Scheimpflug anterior segment analyzer(P<0.05).Bland-Altman consistency analysis showed that Ks,Kf,Km,corneal astigmatism and axis of anterior corneal surface,posterior surface and whole cornea measured by SS-OCT were highly consistent with those measured by Scheimpflug anterior segment analyzer(P<0.05).CONCLUSION:The corneal curvature and astigmatism parameters measured by new SS-OCT are highly consistent with those measured by Scheimpflug anterior segment analyzer,

关 键 词：白内障 新型扫频源光学相干断层扫描仪(SS-OCT) 眼前节分析仪 角膜屈光力 散光 

分 类 号：R776.1[医药卫生—眼科]