1. Articles from Fumiki Okamoto

    1-7 of 7
    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. 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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    4. 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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    5. Investigation of multifocal choroiditis with panuveitis by three-dimensional high-penetration optical coherence tomography

      A single case of multifocal choroiditis with panuveitis (MFCPU) was investigated by a three-dimensional (3-D) high-penetration optical coherence tomography. The HP-OCT is based on a swept-source OCT technology, uses a probe beam with a center wavelength of 1060 nm, and possesses a depth resolution of 10.4 [mu] min tissue. Two eyes of an MFCPU patient were involved in this study. The eyes were also examined by color fundus photograph, fluorescein angiography (FA), and indocyanine green angiography (ICGA). Findings in these four modalities are comparatively discussed. The OCT scans revealed the following characteristic properties of the lesion sites. Thinning of ...
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    6. Visualization of Sub-retinal Pigment Epithelium Morphologies of Exudative Macular Diseases by High-Penetration Optical Coherence Tomography

      PURPOSE. To evaluate the clinical significance of the newly developed long-wavelength probe optical coherence tomography (LP-OCT) for the diagnosis of exudative macular diseases. METHODS. Fourteen eyes of 13 participants were prospectively enrolled in the study. There were seven type I and five type II choroidal neovascularization (CNV) cases associated with age-related macular degeneration and idiopathic neovascularization and one case of polypoidal choroidal vasculopathy (PCV). A custom-built LP-OCT based on swept-source OCT (SS-OCT) technology was used. This new OCT uses a probe beam with a wavelength of 1060 nm that provides deeper penetration into the choroid and higher image contrast to ...
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    7. High-penetration imaging of retinal and choroidal pathologies by 1 um swept-source OCT and optical coherence angiography

      Yoshiaki Yasuno, Masahiro Miura, Fumiki Okamoto et al. Two pathologic cases are evaluated by high-penetration optical coherence tomography (HP-OCT) to demonstrate its clinical significance. The HP-OCT is based on a swept-source OCT (SS-OCT) technology with a probe wavelength of 1.06 [mu]m. The depth resolution is 10.4 [mu]m in tissue, and the measuremen ... [Proc. SPIE Int. Soc. Opt. Eng. 6844, 68441H (2008)] published Mon Feb 11, 2008.
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    1-7 of 7
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  2. Topics in the News

    1. (5 articles) University of Tsukuba
    2. (3 articles) Yoshiaki Yasuno
    3. (2 articles) Masahiro Miura
    4. (1 articles) Korea Advanced Institute of Science and Technology
    5. (1 articles) Shuichi Makita
    6. (1 articles) Masahiro Yamanari
    7. (1 articles) Medical University of Vienna
    8. (1 articles) Harbin Medical University
    9. (1 articles) Université Pierre et Marie Curie
    10. (1 articles) University of Erlangen
    11. (1 articles) Wolfgang Drexler
    12. (1 articles) Adrian G. Podoleanu
    13. (1 articles) Mengyang Liu
    14. (1 articles) Bo Yu
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