September 2016
Volume 57, Issue 12
Open Access
ARVO Annual Meeting Abstract  |   September 2016
Decrease of macular choroidal blood flow velocity and choroidal thickness of acute central serous chorioretinopathy treated by photocoagulation
Author Affiliations & Notes
  • Kouhei Hashizume
    Iwate Medical University, Morioka, Iwate, Japan
  • Yasunori Nishida
    Iwate Medical University, Morioka, Iwate, Japan
  • Mana Nagasawa
    Iwate Medical University, Morioka, Iwate, Japan
  • Takamitsu Fujiwara
    Iwate Medical University, Morioka, Iwate, Japan
  • Daijiro Kurosaka
    Iwate Medical University, Morioka, Iwate, Japan
  • Footnotes
    Commercial Relationships   Kouhei Hashizume, None; Yasunori Nishida, None; Mana Nagasawa, None; Takamitsu Fujiwara, None; Daijiro Kurosaka, None
  • Footnotes
    Support  None
Investigative Ophthalmology & Visual Science September 2016, Vol.57, 2156. doi:
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      Kouhei Hashizume, Yasunori Nishida, Mana Nagasawa, Takamitsu Fujiwara, Daijiro Kurosaka; Decrease of macular choroidal blood flow velocity and choroidal thickness of acute central serous chorioretinopathy treated by photocoagulation. Invest. Ophthalmol. Vis. Sci. 2016;57(12):2156.

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      © 2017 Association for Research in Vision and Ophthalmology.

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Abstract

Purpose : Changes in choroidal circulation with improvement of acute central serous chorioretinopathy (CSC) by photocoagulation (PC) remain unknown. The aim of this study was to evaluate changes in choroidal blood flow velocity by using laser speckle flowgraphy (LSFG) in patients with acute CSC.

Methods : Six eyes of 6 acute CSC patients (5 men, 1 woman; mean age, 49.5 years) were treated by PC. LSFG measurements and subfoveal choroidal thickness (CT) measurements by enhanced depth imaging optical coherence tomography were taken before and 1 month after PC to the leaking spot. LSFG measurements were performed to calculate macular mean blur rate (MBR).

Results : Subretinal fluid decreased at 1 month after PC and completely resolved within 2 months after PC. Macular MBR of CSC eye was significantly decreased to 84.0 ± 11.4 % (p = 0.019, paired t-test) at 1 month after PC, whereas that of the fellow eye was 111.1 ± 15.2 % (p = 0.133), against baseline (100%). CT of CSC eye was significantly decreased from 360 ± 61 µm to 84.0 ± 11.4 µm (p = 0.001) at 1 month after PC, whereas there was no decrease of CT in the fellow eye (from 332 ± 85 µm to 340 ± 85 µm, p = 0.098).

Conclusions : PC treatment for acute CSC decreased macular choroidal blood flow velocity and central choroidal thickness, suggesting that elevation of choroidal blood flow is involved in pathogenesis of CSC.

This is an abstract that was submitted for the 2016 ARVO Annual Meeting, held in Seattle, Wash., May 1-5, 2016.

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