Comparison of ocular parameters of two biometric measurement devices in highly myopic eyes

• 作者: Fan Zhang Lu Zhao Ran You Shan-Shan Li Xi Chen Xiao-Xiao Guo Xiu-Fen Yang Yan-Ling Wang
• 来源期刊: 国际眼科杂志:英文版
• 学科: 医学
• 关键词: high MYOPIA optical BIOMETRIC MEASUREMENT AGREEMENT difference
• 年，卷（期）: gjykzzywb_2019,（10）
• 页码范围: 1548-1554
• 页数: 7页
• 分类号: R778.11

摘要

AIM: To compare the differences and agreement of ocular biometric parameters in highly myopic eyes obtained by optical biometric measurement instruments, the OA-2000 and IOLMaster 500. METHODS: Totally, 90 patients(90 eyes) were included. They were divided into high myopia group and control group. Ocular parameters, including axial length(AL), mean keratometry(Km), anterior chamber depth(ACD), and white to white(WTW), were obtained from the OA-2000 and IOLMaster 500. RESULTS: For the control group, we applied BlandAltman graphs to assess the 95% limits of agreement(LoA) for most parameters including AL, ACD, Km, and WTW(-0.24 to 0.29 mm,-0.22 to 0.45 mm,-0.39 to 0.31 D, and-0.90 to 0.86 mm, respectively). In high myopia patients, AL, ACD, Km values had wider 95% LoA(-0.34 to 0.32 mm,-0.36 to 0.34 mm,-0.57 to 0.47 D, respectively), except WTW(-0.80 to 0.68 mm). Differences were not statistically significant between these two instruments(P>0.05). CONCLUSION: Most parameters obtained by the OA-2000 and IOLMaster 500 are comparable, including the AL, ACD, and K values. Among them, the agreement of the high myopia patients is poor compared to the patients without high myopia.