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Hemodynamics of focal choroidal excavations

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Abstract

The purpose of this study was to investigate the hemodynamics of focal choroidal excavations (FCEs). Four eyes of four patients with a FCE were studied. Indocyanine green angiography (ICGA), laser speckle flowgraphy (LSFG), optical coherence tomography (OCT), and multi-focal electroretinography (mfERG) were performed to investigate the choroidal hemodynamics and the morphological and functional changes. The mean depth of the FCE determined by OCT was 222.5 ± 49.5 μm with a range of 164–272 μm. In one case, subretinal fluid was observed in the excavation, and in three cases, subretinal fluid was not observed. ICGA showed hypofluorescence, and laser flowgraphy (LSFG) showed decreased choroidal blood flow at the excavation in all cases. Three cases were symptomatic, and the amplitudes of the mfERGs were reduced. FCEs cause a decrease of choroidal blood flow. In three of four cases, the mfERGs were depressed over the FCEs leading to symptoms.

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Acknowledgment

Supported in part by research grant 22390322 and 23659808 from the Japan Society for the Promotion of Science, Tokyo, Japan.

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Authors and Affiliations

  1. Department of Ophthalmology and Visual Science, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-Ku, Tokyo, 113-8510, Japan

    Ryoko Soma, Muka Moriyama & Kyoko Ohno-Matsui

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  1. Ryoko Soma
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  2. Muka Moriyama
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  3. Kyoko Ohno-Matsui
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Correspondence to Ryoko Soma.

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Soma, R., Moriyama, M. & Ohno-Matsui, K. Hemodynamics of focal choroidal excavations. Int Ophthalmol 35, 261–268 (2015). https://doi.org/10.1007/s10792-015-0042-1

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  • DOI: https://doi.org/10.1007/s10792-015-0042-1

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