Comparison of ocular biometric parameters between two swept-source optical coherence tomography devices and Scheimpflug tomography in patients with cataract  

作　　者：Shan Ma Cheng Li Jing Sun Jun Yang Kai Wen Xi-Teng Chen Fang-Yu Zhao Rong-Yu Gao Fang Tian 

机构地区：[1]Tianjin Key Laboratory of Retinal Functions and Diseases,Tianjin Branch of National Clinical Research Center for Ocular Disease,Eye Institute and School of Optometry,Tianjin Medical University Eye Hospital,Tianjin 300380,China [2]Zhengda Guangming Eye Group,Weifang 261000,Shandong Province,China [3]Binzhou Polytechnic,Binzhou 256603,Shandong Province,China

出　　处：《International Journal of Ophthalmology(English edition)》2024年第8期1437-1446,共10页国际眼科杂志（英文版）

基　　金：Supported by Tianjin Key Medical Discipline (Specialty) Construction Project (No.TJYXZDXK-037A);Weifang Science and Technology Bureau Project (No.2020YX065).

摘　　要：AIM:To assess and compare the variations and agreements across different ocular biometric parameters using swept-source optical coherence tomography(SS-OCT)and Scheimpflug tomography in patients diagnosed with cataract.METHODS:This prospective case series was conducted at Tianjin Medical University Eye Hospital.In total,212 eyes from 212 patients scheduled for phacoemulsification were included.Eyes were evaluated preoperatively using two SSOCT devices(IOLMaster700 and CASIA2)and Scheimpflug tomography(Pentacam).Central corneal thickness(CCT),anterior chamber depth(ACD),aqueous depth(AQD),white-to-white distance(WTW),flat simulated keratometry(Kf),steep simulated keratometry(Ks),mean keratometry(Km),and total corneal keratometry(TKm)were measured.Intraclass correlation coefficient(ICC),95%confidence intervals(CI)and limits of agreement(LoA)widths were conducted to assess differences and correlations between devices.RESULTS:All parameters,except for Ks,were significantly different.Pairwise comparison revealed no significant differences between keratometry obtained by IOLMaster 700 and Pentacam.LoA widths of all paired comparisons for Ks were>0.80 D.Except for WTW between IOLMaster 700 and CASIA2 and between CASIA2 and Pentacam,other Pearson’s coefficients between devices showed a strong correlation(all r>0.95).The ICC of WTW(ICC=0.438,95%CI 0.167-0.625)showed poor reliability.The reliability of CCT,ACD,and AQD was excellent(all ICC>0.95),whereas that of TKm was good(ICC=0.827,95%CI 0.221-0.939).A significant linear correlation was also observed among devices.CONCLUSION:The ocular parameters derived from the use of IOLMaster700,CASIA2,and Pentacam exhibit significant discrepancies;as such,measurements from these devices should not be deemed as interchangeable.

关 键 词：ocular parameters swept-source optical coherence tomography CATARACT 

分 类 号：R776.1[医药卫生—眼科]