Comparison and interchangeability of macular thickness measured with Cirrus OCT and Stratus OCT in myopic eyes

• 作者: Geng Wang Kun-Liang Qiu Ming-Zhi Zhang Xue-Hui Lu
• 来源期刊: 国际眼科杂志：英文版
• 学科: 医学
• 关键词: 近视 有斑点的厚度 光谱领域触毛 10 月 时间领域层云 10 月 可互换性
• 年，卷（期）: 2015,（6）
• 页码范围: 1196-1201
• 页数: 0页
• 分类号: R778.11

摘要

AIM: To investigate the difference of macular thickness measurements between Stratus optical coherence tomography(OCT) and Cirrus OCT(Carl Zeiss Meditec,Dublin, CA, USA) in the same myopic patient and to develop a conversion equation to interchange macular thickness obtained with these two OCT devices.·METHODS: Eighty-nine healthy Chinese adults with spherical equivalent(SE) ranging from-1.13 D to-9.63 D were recruited. The macular thickness was measured by Cirrus OCT and Stratus OCT. The correlation between macular thickness and axial length and the agreement between two OCT measurements were evaluated. A formula was generated to interchange macular thickness obtained with two OCT devices.·RESULTS: Average macular thickness measured with Stratus OCT(r =-0.280, P =0.008) and Cirrus OCT(r =-0.224,P =0.034) were found to be negatively correlated with axial length. No statistically significant correlation was found between axial length and central subfield macular thickness(CMT) measured with Stratus OCT(r =0.191,P =0.073) and Cirrus OCT(r =0.169, P =0.113). The mean CMT measured with Cirrus OCT was 53.63 ±7.94 μm thicker than with Stratus OCT. The formula CMTCirrus OCT=78.328 +0.874 ×CMTStratus OCTwas generated to interchange macular thickness obtained with two OCT devices.· CONCLUSION: Macular thickness measured with Cirrus OCT were thicker than with Stratus OCT in myopic eyes. A formula can be used to interchange macular thickness measured with two OCT devices in myopic eyes. Studies with different OCT devices and larger samples are warranted to enable the comparison of macular values measured with different OCT devices.