Comparison of axial length measurements of IOLMaster and contact A-scan in eyes with macular edema
10.3760/cma.j.issn.1005-1015.2012.04.011
- VernacularTitle:光相干生物测量仪与接触式A型超声测量黄斑水肿患者眼轴长度比较
- Author:
Jing SUN
;
Situo LIANG
;
Hong ZHANG
- Publication Type:Journal Article
- Keywords:
Macular edema/ultrasonography;
Tomography,optical
- From:
Chinese Journal of Ocular Fundus Diseases
2012;28(4):359-362
- CountryChina
- Language:Chinese
-
Abstract:
[Objective] To compare the axial length (AL) measured with IOLMaster and contact A-Scan in eyes with macular edema (ME) and to investigate the correlation between measurement difference and foveal thickness.[Methods] Sixty-seven ME eyes of 42 patients (ME group) and 40 healthy eyes of 30participants (control group) were enrolled in this study.Foveal thickness was measured with 3D optical coherence topography (OCT)-1000.The AL was prospectively measured by IOLMaster and contact A-scan,The correlation between measurement difference and foveal thickness was analyzed by Pearson correlation analysis.[Results] Mean foveal thickness of ME eyes was (377.85± 119.84) μm.Mean AL by IOLMaster and contact A-scan were (22.95±0.97) mm and (22.82±1.04) mm in ME group,and (23.21±1.08) mm and (23.17 ± 1.15) mm in the control group respectively.The difference between two groups was statistically significant (t=-3.102,P=0.003).There was no correlation between measurement difference and foveal thickness in ME group (r=-0.097; P =0.447).[Conclusion]s There is a difference of AL measurements using contact A-scan and IOLMaster in ME eyes.However,there was no correlation between measurement difference and the foveal thickness.
