1. Yasushi Ikuno

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    1. Mentioned In 22 Articles

    2. 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 ...
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    3. Quantitative polarization and flow evaluation of choroid and sclera by multifunctional Jones matrix optical coherence tomography

      Quantitative polarization and flow evaluation of choroid and sclera by multifunctional Jones matrix optical coherence tomography
      Quantitative evaluation of optical properties of choroid and sclera are performed by multifunctional optical coherence tomography. Five normal eyes, five glaucoma eyes and one choroidal atrophy eye are examined. The refractive error was found to be correlated with choroidal birefringence, polarization uniformity, and flow in addition to scleral birefringence among normal eyes. The significant differences were observed between the normal and the glaucoma eyes, as for choroidal polarization uniformity, flow ...
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    4. Analysis of Peripapillary Geometric Characters in High Myopia Using Swept-Source Optical Coherence Tomography

      Analysis of Peripapillary Geometric Characters in High Myopia Using Swept-Source Optical Coherence Tomography
      Purpose : We measured the three-dimensional geometric profile around the optic nerve head (ONH) using swept-source optical coherence tomography (SS-OCT) in highly myopic eyes. Methods : We studied 114 highly myopic eyes (6.0 diopters [D]) of 114 patients without glaucoma. Eyes were examined using the prototype SS-OCT. The retinal pigment epithelium (RPE) and chorioscleral interface were traced, and the mean y -axis coordinates of 24 sectors were calculated in circular peripapillary ...
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    5. Birefringence imaging of posterior eye by multi-functional Jones matrix optical coherence tomography

      Birefringence imaging of posterior eye by multi-functional Jones matrix optical coherence tomography
      A clinical grade prototype of posterior multifunctional Jones matrix optical coherence tomography (JM-OCT) is presented. This JM-OCT visualized depth-localized birefringence in addition to conventional cumulative phase retardation imaging through local Jones matrix analysis. In addition, it simultaneously provides a sensitivity enhanced scattering OCT, a quantitative polarization uniformity contrast, and OCT-based angiography. The probe beam is at 1- m wavelength band. The measurement speed and the depth-resolution were 100,000 A-lines ...
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    6. Analysis of choroidal folds in acute Vogt–Koyanagi–Harada disease using high-penetration optical coherence tomography

      Analysis of choroidal folds in acute Vogt–Koyanagi–Harada disease using high-penetration optical coherence tomography
      Purpose To characterize patients with VogtKoyanagiHarada (VKH) disease with choroidal folds (CFs) and determine how the foveal choroidal thickness changes after initial treatment using high-penetration optical coherence tomography (HP-OCT). Methods In this retrospective observational study, we analyzed 42 eyes of 21 patients with new-onset VKH disease to determine the demographic and clinical differences between patients with and without CFs. Results Twenty-four eyes (57.1 %) of 13 patients with VKH disease ...
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    7. Choroidal observations in posterior scleritis using high-penetration optical coherence tomography

      Choroidal observations in posterior scleritis using high-penetration optical coherence tomography
      To investigate the choroidal morphologic changes in two patients with posterior scleritis. We used high-penetration optical coherence tomography (HP-OCT) in vivo with a long-wavelength light source (1,060 nm) to view the choroidal changes. In patient 1 with unilateral scleritis, the subfoveal choroidal thickness of the right eye was 418 m with a serous retinal detachment (SRD) at the initial visit. The treatment regimen was prednisolone 30 mg/day, and ...
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    8. Comparison of spectral-domain and high-penetration OCT for observing morphologic changes in age-related macular degeneration and polypoidal choroidal vasculopathy

      Comparison of spectral-domain and high-penetration OCT for observing morphologic changes in age-related macular degeneration and polypoidal choroidal vasculopathy
      Background We compared the visibility of retinal and choroidal pathologies using high-penetration optical coherence tomography (HP-OCT) with a long-wavelength light source (1,050 nm) and conventional spectral-domain OCT (SD-OCT) in age-related macular degeneration (AMD). Methods One hundred and forty-six eyes were included: 63 eyes with AMD, 79 eyes with polypoidal choroidal vasculopathy (PCV), and four eyes with retinal angiomatous proliferation. The SD-OCT and HP-OCT images were compared using the grading ...
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    9. Comparison of enhanced depth imaging and high-penetration optical coherence tomography for imaging deep optic nerve head and parapapillary structures

      Comparison of enhanced depth imaging and high-penetration optical coherence tomography for imaging deep optic nerve head and parapapillary structures
      ... structures with HP-OCT. Both systems should be chosen depending on the target tissue to observe Atsuya Miki, Yasushi Ikuno, Yukari Jo, Kohji Nishida Department of Ophthalmology, Osaka University Graduate School of Medi...
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    10. 3-D Choroidal Thickness Maps from EDI-OCT in Highly Myopic Eyes

      3-D Choroidal Thickness Maps from EDI-OCT in Highly Myopic Eyes
      Purpose: Myopic chorioretinal atrophy is a debilitating condition that causes severe loss of primary vision. However, its mechanisms and pathologic course are not well understood. We performed volumetric measurements of the posterior choroid via three-dimensional analysis of the choroid in patients with high myopia to understand its structure, and we compared the measurements with those of normal subjects. Methods: Twenty-five highly myopic but otherwise normal eyes and 25 nonmyopic eyes ...
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    11. Choroidal observations in Vogt–Koyanagi–Harada disease using high-penetration optical coherence tomography

      Choroidal observations in Vogt–Koyanagi–Harada disease using high-penetration optical coherence tomography
      Background The aim of this work was to investigate the choroidal morphologic changes of Vogt–Koyanagi–Harada (VKH) disease in vivo using high-penetration optical coherence tomography (HP-OCT) with a long-wavelength light source (1,060 nm). Methods Fourteen patients with VKH disease were included in this study: 12 eyes of six patients with treatment-naive acute VKH in the first 6–12 months after diagnosis and 16 eyes of eight patients in ...
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    12. Evaluation of the Choroidal Thickness Using High-Penetration Optical Coherence Tomography With Long Wavelength in Highly Myopic Normal-Tension Glaucoma

      Evaluation of the Choroidal Thickness Using High-Penetration Optical Coherence Tomography With Long Wavelength in Highly Myopic Normal-Tension Glaucoma
      ...y, Osaka University Graduate School of Medicine, Suita, Japan + Corresponding Author Information Inquiries to Yasushi Ikuno, Department of Ophthalmology E7, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Su...
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    13. 1-15 of 22 1 2 »
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  2. About Yasushi Ikuno

    Yasushi Ikuno, M.D., is at the Department of Ophthalmology, Osaka University Medical School, Osaka, Japan.