Diurnal macular choroidal area fluctuation in normal and primary open angle glaucoma groups
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Xiao-Lan Xu and Jun-Ming Wang. Department of Ophthalmology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No.1095 Jiefang Road, Wuhan 430030, Hubei Province, China. xxllisamxcz2008@126.com; yksys32438@ 163.com

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    Abstract:

    AIM: To assess and compare the diurnal macular choroidal area fluctuation in normal and primary open angle glaucoma (POAG) groups using enhanced depth imaging optical coherence tomography (EDI-OCT). METHODS: Twenty-eight normal and 27 POAG eyes were enrolled in this study. EDI-OCT was used to measure the macular choroidal area every 3h from 9:00 a.m. to 21:00 p.m. RESULTS: Significant diurnal fluctuations of macular choroidal area were observed in both normal (P=0.003) and POAG groups (P<0.001). But no significant macular choroidal area difference has been found between the two groups at all the five measurement time-points (512778±166242 vs 455079±207278 μm2, P=0.195 at 9:00 a.m.; 501526±168953 vs 447846±211147 μm2, P=0.245 at 12:00 a.m.; 501982±173158 vs 448024±206653 μm2, P=0.239 at 15:00 p.m.; 508912±174589 vs 457783±207081 μm2, P=0.252 at 18:00 p.m.; 503787±171241 vs 453230±205955 μm2, P=0.274 at 21:00 p.m.; respectively). Furthermore, neither the fluctuation manners nor the change in macular choroidal area between the two adjacent measurement time points showed significant difference between normal and POAG groups (all P>0.05). In the meantime, significant diurnal intraocular pressure fluctuations were also observed in normal and POAG groups (both P<0.001). CONCLUSION: In diurnal time, the macular choroidal area in both normal and POAG groups fluctuated significantly; moreover, neither the value of macular choroidal area, nor the fluctuation of macular choroidal area in POAG group is significantly different from that in normal group.

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Mu Li, Jin-Min Guo, Xiao-Lan Xu, et al. Diurnal macular choroidal area fluctuation in normal and primary open angle glaucoma groups. Int J Ophthalmol, 2017,10(8):1233-1238

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Publication History
  • Received:December 26,2016
  • Revised:April 24,2017
  • Adopted:
  • Online: August 09,2017
  • Published: