1. Articles from taku wakabayashi

    1-8 of 8
    1. Evaluation of retinal nonperfusion in branch retinal vein occlusion using wide‐field optical coherence tomography angiography

      Evaluation of retinal nonperfusion in branch retinal vein occlusion using wide‐field optical coherence tomography angiography

      Purpose To characterize wide‐field optical coherence tomography angiography (OCTA) features of retinal nonperfusion in eyes with branch retinal vein occlusion (BRVO). Methods Automated scanning of five 12 × 12‐mm areas of swept‐source OCTA and wide‐field fluorescein angiography (FA) images was performed in a consecutive case series of 27 eyes in 27 patients with BRVO in this institutional cross‐sectional study. The correlation between the areas of retinal nonperfusion detected by both examinations was assessed. Panoramic images obtained in five 12 × 12‐mm OCTA scans in eyes with retinal nonperfusion were binarized or skeletonized, and the associations between ...

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    2. Retinal Microvasculature and Visual Acuity after Intravitreal Aflibercept in Diabetic Macular Edema: An Optical Coherence Tomography Angiography Study

      Retinal Microvasculature and Visual Acuity after Intravitreal Aflibercept in Diabetic Macular Edema: An Optical Coherence Tomography Angiography Study

      We investigated changes in retinal vascular area and the foveal avascular zone (FAZ) after intravitreal aflibercept in diabetic macular edema (DME) and the association of these changes with visual outcomes. The retinal vascular area in the superficial capillary plexus (SCP) and the deep capillary plexus (DCP) and the FAZ area were measured using optical coherence tomography angiography (OCTA) in 23 eyes of 23 patients with DME, before and after intravitreal aflibercept. Overall, there was no significant change in retinal vascular area or FAZ. Better BCVA after treatment was significantly associated with larger retinal vascular area in the SCP and the ...

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      Mentions: Osaka University
    3. An Optical Coherence Tomography Angiography Study

      An Optical Coherence Tomography Angiography Study

      Purpose: To investigate vascular perfusion and foveal avascular zone area in the superficial capillary plexus (SCP) and deep capillary plexus (DCP) after intravitreal aflibercept therapy in central retinal vein occlusion eyes and their association with best-corrected visual acuity. Methods: Thirty-five subjects with central retinal vein occlusion and macular edema were evaluated. After macular edema resolution following intravitreal aflibercept , subjects underwent optical coherence tomography angiography to measure SCP and DCP perfusion and the foveal avascular zone within a 3 × 3-mm area. Correlations between best-corrected visual acuity and optical coherence tomography angiography measurements were examined. Results: After intravitreal aflibercept therapy, mean retinal ...

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    4. Retinal Microvasculature and Visual Acuity in Eyes With Branch Retinal Vein Occlusion: Imaging Analysis by Optical Coherence Tomography Angiography

      Retinal Microvasculature and Visual Acuity in Eyes With Branch Retinal Vein Occlusion: Imaging Analysis by Optical Coherence Tomography Angiography

      Purpose : To investigate microvascular changes in the superficial capillary plexus (SCP) and deep capillary plexus (DCP) in eyes with resolved branch retinal vein occlusion (BRVO) and their association with best-corrected visual acuity (BCVA). Methods : Eighty-five eyes (82 consecutive patients) with BRVO after resolution of the macular edema were retrospectively evaluated. All patients underwent optical coherence tomography angiography (OCTA) for assessment of microvascular changes, including capillary telangiectasia, microaneurysm, and disruption of the foveal avascular zone (FAZ). The areas of vascular perfusion and FAZ in the SCP and DCP were quantitatively evaluated. Best-corrected visual acuity was measured on the same day as ...

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    5. Foveal Microstructure and Visual Acuity in Surgically Closed Macular Holes: Spectral-Domain Optical Coherence Tomographic Analysis

      Foveal Microstructure and Visual Acuity in Surgically Closed Macular Holes: Spectral-Domain Optical Coherence Tomographic Analysis
      Purpose: To evaluate reconstructive changes in foveal microstructures and identify a correlation with visual outcomes in eyes with surgically closed macular holes (MHs).Design: Retrospective, consecutive, observational case series.Participants: Forty eyes (40 patients) with surgically closed MHs.Methods: Spectral-domain optical coherence tomography (SD-OCT) was performed to assess the foveal microstructural changes 3 and 12 months postoperatively. The correlation between the postoperative best-corrected visual acuity (BCVA) and the integrity of the foveal photoreceptor layer was evaluated.Main Outcome Measures: The integrity of the back-reflection lines from the photoreceptor inner segment (IS) and outer segment (OS) junction and the external limiting ...
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      Mentions: Osaka University
    6. Foveal Microstructure and Visual Acuity after Retinal Detachment Repair: Imaging Analysis by Fourier-Domain Optical Coherence Tomography

      Purpose To evaluate foveal microstructural changes in eyes with anatomically successful repair of rhegmatogenous retinal detachments (RRDs). Design Retrospective, consecutive, observational case series. Participants Fifty-three eyes of 51 consecutive patients with macula-on RRDs (15 eyes) or macula-off RRDs (38 eyes) after anatomically successful surgical repair. Methods A microscopic fundus examination was conducted followed by Fourier-domain optical coherence tomography (FD-OCT) to assess the postoperative foveal microstructure. The correlation between the postoperative best-corrected visual acuity (BCVA) and microstructural findings at the fovea was evaluated. Main Outcome Measures Images of the foveal microstructure obtained by FD-OCT and the BCVA measured on the same ...
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      Mentions: Osaka University
    7. Morphologic Changes in Acute Central Serous Chorioretinopathy Evaluated by Fourier-Domain Optical Coherence Tomography

      Objective: To investigate morphologic alterations around fluorescein leakage sites using Fourier-domain optical coherence tomography (FD OCT) in acute central serous chorioretinopathy (CSC).Design: Observational case series.Participants: Twenty-one eyes with acute CSC with subjective symptoms for under 3 months.Methods: Patients underwent measurement of visual acuity, fundus observations, and FD OCT examinations at every visit with the intervals of 2 to 4 weeks until subretinal fluid (SRF) resolved. Fluorescein angiography was performed at baseline to confirm dye leakage sites. Horizontal and vertical OCT scans (B-scans and consecutive raster scans) of the fovea and fluorescein leakage sites were obtained.Main Outcome ...
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      Mentions: Osaka University
    1-8 of 8
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    Foveal Microstructure and Visual Acuity in Surgically Closed Macular Holes: Spectral-Domain Optical Coherence Tomographic Analysis Retinal Microvasculature and Visual Acuity in Eyes With Branch Retinal Vein Occlusion: Imaging Analysis by Optical Coherence Tomography Angiography Foveal avascular zone area after macula-off rhegmatogenous retinal detachment repair: an optical coherence tomography angiography study An Optical Coherence Tomography Angiography Study Retinal Microvasculature and Visual Acuity after Intravitreal Aflibercept in Diabetic Macular Edema: An Optical Coherence Tomography Angiography Study Evaluation of retinal nonperfusion in branch retinal vein occlusion using wide‐field optical coherence tomography angiography Chalcogenide-glass polarization-maintaining photonic crystal fiber for mid-infrared supercontinuum generation Supervised machine learning based multi-task artificial intelligence classification of retinopathies OCT-Detected Optic Nerve Head Neural Canal Direction, Obliqueness and Minimum Cross-Sectional Area in Healthy Eyes Combined intracoronary assessment and treatment of a patient with coronary plaque rapid progression prior to acute myocardial infarction A case report Quantifying microstructural changes in retinitis pigmentosa using spectral domain – optical coherence tomography Photothermal Optical Coherence Tomography of Anti-Angiogenic Treatment in the Mouse Retina Using Gold Nanorods as Contrast Agents