1. Articles from Takahiro Hiraoka

    1-5 of 5
    1. Changes In Metamorphopsia And Optical Coherence Tomography Findings After Successful Retinal Detachment Surgery

      Changes In Metamorphopsia And Optical Coherence Tomography Findings After Successful Retinal Detachment Surgery

      Purpose: To investigate changes in metamorphopsia after rhegmatogenous retinal detachment surgery and to evaluate the relationship between metamorphopsia and retinal microstructures assessed with optical coherence tomography . Methods: The study included 47 eyes of 47 patients undergoing retinal detachment surgery. We examined the severity of metamorphopsia using M-CHARTS, best-corrected visual acuity, and optical coherence tomography images. All data were recorded before and 3, 6, and 12 months after surgery, except for M-CHARTS which were recorded only postoperatively. Results: Metamorphopsia scores at 3, 6, and 12 months postoperatively were 0.46 ± 0.51, 0.41 ± 0.44, and 0.28 ± 0.37 ...

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    2. STEREOPSIS AND OPTICAL COHERENCE TOMOGRAPHY FINDINGS AFTER EPIRETINAL MEMBRANE SURGERY

      STEREOPSIS AND OPTICAL COHERENCE TOMOGRAPHY FINDINGS AFTER EPIRETINAL MEMBRANE SURGERY

      Purpose: To evaluate stereopsis in patients undergoing vitrectomy for epiretinal membrane and to investigate the relationship between stereopsis and foveal microstructures. Methods: This study included 55 eyes of 55 patients who underwent vitrectomy for unilateral epiretinal membrane and 27 age-matched normal subjects. We examined stereopsis using the Titmus Stereo Test, TNO stereotest, and, optical coherence tomography before surgery and 6 months after surgery. Central foveal thickness, central retinal thickness at the parafovea (CRT-3 mm), macular volume, and retinal layer thickness were measured with the optical coherence tomography software and an image-processing program. Results: Epiretinal membrane surgery significantly improved stereopsis in ...

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    3. Metamorphopsia and Optical Coherence Tomography Findings After Rhegmatogenous Retinal Detachment Surgery

      Metamorphopsia and Optical Coherence Tomography Findings After Rhegmatogenous Retinal Detachment Surgery

      Purpose To investigate the relationship between metamorphopsia and macular morphologic changes after successful repair of rhegmatogenous retinal detachment (RD). Design Prospective, interventional, consecutive study. Methods The study included 129 eyes of 129 patients who had undergone successful retinal reattachment surgery. The severity of metamorphopsia was recorded using M-CHARTS and foveal microstructure was assessed with spectral-domain optical coherence tomography (OCT) at 6-12 months postoperatively. Results The mean metamorphopsia score was 0.30 ± 0.46, and 50 of 129 patients (39%) had metamorphopsia. Metamorphopsia was more severe in eyes with macula-off rhegmatogenous RD than those with macula-on ( P < .001). Eighteen of 50 ...

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    4. Comparison of three-dimensional optical coherence tomography and combining a rotating Scheimpflug camera with a Placido topography system for forme fruste keratoconus diagnosis

      Comparison of three-dimensional optical coherence tomography and combining a rotating Scheimpflug camera with a Placido topography system for forme fruste keratoconus diagnosis

      Objective To evaluate the ability of parameters measured by three-dimensional (3D) corneal and anterior segment optical coherence tomography (CAS-OCT) and a rotating Scheimpflug camera combined with a Placido topography system (Scheimpflug camera with topography) to discriminate between normal eyes and forme fruste keratoconus. Methods Forty-eight eyes of 48 patients with keratoconus, 25 eyes of 25 patients with forme fruste keratoconus and 128 eyes of 128 normal subjects were evaluated. Anterior and posterior keratometric parameters (steep K, flat K, average K), elevation, topographic parameters, regular and irregular astigmatism (spherical, asymmetry, regular and higher-order astigmatism) and five pachymetric parameters (minimum, minimum–median ...

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    5. Comparison of three-dimensional optical coherence tomography and combining a rotating Scheimpflug camera with a Placido topography system for forme fruste keratoconus diagnosis

      Comparison of three-dimensional optical coherence tomography and combining a rotating Scheimpflug camera with a Placido topography system for forme fruste keratoconus diagnosis

      Objective To evaluate the ability of parameters measured by three-dimensional (3D) corneal and anterior segment optical coherence tomography (CAS-OCT) and a rotating Scheimpflug camera combined with a Placido topography system (Scheimpflug camera with topography) to discriminate between normal eyes and forme fruste keratoconus. Methods Forty-eight eyes of 48 patients with keratoconus, 25 eyes of 25 patients with forme fruste keratoconus and 128 eyes of 128 normal subjects were evaluated. Anterior and posterior keratometric parameters (steep K, flat K, average K), elevation, topographic parameters, regular and irregular astigmatism (spherical, asymmetry, regular and higher-order astigmatism) and five pachymetric parameters (minimum, minimum–median ...

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    1-5 of 5
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    1. (4 articles) University of Tsukuba
    2. (2 articles) Masahiro Yamanari
    3. (2 articles) Yoshiaki Yasuno
    4. (1 articles) Tomey Corporation
    5. (1 articles) Tomey SS-1000 CASIA
    6. (1 articles) Northwestern University
    7. (1 articles) Hao F. Zhang
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    Comparison of three-dimensional optical coherence tomography and combining a rotating Scheimpflug camera with a Placido topography system for forme fruste keratoconus diagnosis Comparison of three-dimensional optical coherence tomography and combining a rotating Scheimpflug camera with a Placido topography system for forme fruste keratoconus diagnosis Metamorphopsia and Optical Coherence Tomography Findings After Rhegmatogenous Retinal Detachment Surgery STEREOPSIS AND OPTICAL COHERENCE TOMOGRAPHY FINDINGS AFTER EPIRETINAL MEMBRANE SURGERY Changes In Metamorphopsia And Optical Coherence Tomography Findings After Successful Retinal Detachment Surgery Longitudinal deep-brain imaging in mouse using visible-light optical coherence tomography through chronic microprism cranial window Avinger Announces Full Commercial Launch of Pantheris SV Postdoctoral Research Fellowships (Optical Coherence Tomography) at Massachusetts General Hosptial Postdoctoral Research Fellowships (In Vivo Microscopy) At Massachusetts General Hospital Circumpapillary and macular vessel density assessment by optical coherence tomography angiography in eyes with temporal hemianopia from chiasmal compression. Correlation with retinal neural and visual field loss Miniaturizing medical imaging, sensing technology On-chip tunable photonic delay line