Diurnal macular choroidal area fluctuation in normal and primary open angle glaucoma groups

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 (P0.05). 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.

Keywords

• 1238
• diurnal fluctuation
• macular choroidal area
• primary open angle glaucoma
• optical coherence tomography