1. Articles from Yuki Morizane

    1-8 of 8
    1. Concerns about the interpretation of OCT and fundus findings in COVID-19 patients in recent Lancet publication

      Concerns about the interpretation of OCT and fundus findings in COVID-19 patients in recent Lancet publication

      We read with great interest the correspondence in Lancet by Marinho et al. [ 1 ] describing purported retinal manifestations of coronavirus disease (COVID-19). While there is great interest to understand potential ocular complications of COVID-19 during this pandemic, we have some concerns regarding the interpretation of the fundus and optical coherence tomography (OCT) findings. Marinho et al. examined 12 COVID-19 patients (all confirmed by PCR or antibody testing) with typical systemic disease but no visual symptoms. The reported cohort was relatively young (25–69 years; no mean or median provided) without severe systemic disease, although 2 were hospitalized. Eleven of the ...

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    2. Impact of Cataract Surgery on Filtering Bleb Morphology Identified Via Swept-source 3-dimensional Anterior Segment Optical Coherence Tomography

      Impact of Cataract Surgery on Filtering Bleb Morphology Identified Via Swept-source 3-dimensional Anterior Segment Optical Coherence Tomography

      Précis: Analysis of filtering bleb morphology using swept-source 3-dimensional anterior segment optical coherence tomography (3D AS-OCT) indicates that phacoemulsification can negatively impact the morphology of preexisting filtering blebs. Purpose: To identify the cross-sectional morphologic changes in successful filtering blebs after phacoemulsification using swept-source 3D AS-OCT. Materials and Methods: In total, 30 phakic eyes of 29 patients with successful filtering blebs after primary trabeculectomy were included in this retrospective cohort study. Success was defined as intraocular pressure (IOP)≤15 mm Hg and a>20% reduction in IOP without glaucoma medication or additional glaucoma surgery after trabeculectomy . The subjects were classified ...

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    3. Impact of Cataract Surgery on Filtering Bleb Morphology Identified Via Swept-source Three-dimensional Anterior Segment Optical Coherence Tomography

      Impact of Cataract Surgery on Filtering Bleb Morphology Identified Via Swept-source Three-dimensional Anterior Segment Optical Coherence Tomography

      Purpose: To identify the cross-sectional morphological changes in successful filtering blebs after phacoemulsification using swept-source three-dimensional anterior segment optical coherence tomography (3D AS-OCT). Materials and Methods: Thirty phakic eyes of 29 patients with successful filtering blebs after primary trabeculectomy were included in this retrospective cohort study. Success was defined as intraocular pressure (IOP)≤15▒mmHg and a>20% reduction in IOP without glaucoma medication or additional glaucoma surgery after trabeculectomy . The subjects were classified into two groups according to whether they had undergone phacoemulsification or not after trabeculectomy : a phaco group and a control group. Filtering blebs were examined using ...

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    4. Assessment of lamellar macular hole and macular pseudohole with a combination of en face and radial B-scan optical coherence tomography imaging

      Assessment of lamellar macular hole and macular pseudohole with a combination of en face and radial B-scan optical coherence tomography imaging

      Purpose To investigate lamellar macular hole (LMH) and macular pseudohole (MPH) using a combination of en face and radial B-scan OCT. Design Retrospective observational case series. Methods Setting: Institutional study Patient Population En face and radial B-scan OCT images of 63 eyes of 60 patients diagnosed with LMH or MPH based on an international classification were reviewed. Observation Procedures Cases were classified using en face images based on the presence/absence of epiretinal membrane (ERM), retinal folds, parafoveal epicenter of contractile ERM (PEC-ERM), and retinal cleavage. We compared the en face imaging-based classification system with the international classification system using ...

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    5. Factors affecting foveal avascular zone in healthy eyes: An examination using swept-source optical coherence tomography angiography

      Factors affecting foveal avascular zone in healthy eyes: An examination using swept-source optical coherence tomography angiography

      Objective To examine factors affecting foveal avascular zone (FAZ) area in healthy eyes using swept-source optical coherence tomography angiography (OCTA). Methods This prospective, cross-sectional study included 144 eyes of 144 individuals (77 women, 67 men) with a best corrected visual acuity of at least 20/20 and no history of ocular disorders. The area of the superficial FAZ was assessed using OCTA. Age, gender, central retinal thickness (CRT), retinal vascular density, refractive error, and axial length were examined to determine associations with FAZ area. Results The mean age of the subjects was 42.1 ± 20.2 years (range: 10–79 ...

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    6. Characteristics of early filtering blebs that predict successful trabeculectomy identified via three-dimensional anterior segment optical coherence tomography

      Characteristics of early filtering blebs that predict successful trabeculectomy identified via three-dimensional anterior segment optical coherence tomography

      Background/aims To identify the cross-sectional characteristics of filtering blebs at 2 weeks post-trabeculectomy associated with intraocular pressure (IOP) control at 1 year post-trabeculectomy. Methods Ninety-nine eyes of 94 patients who had undergone primary trabeculectomy were included in this retrospective consecutive case series study. Surgical success was defined as an IOP ≤15 mm Hg and a >20% reduction in IOP without glaucoma medication or additional glaucoma surgeries at 1 year post-trabeculectomy. Subjects were classified into two groups according to whether surgery was successful or unsuccessful. Blebs were examined using swept-source three-dimensional anterior segment optical coherence tomography and evaluated for quantitative ...

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    7. Assessment of tilt and decentration of crystalline lens and intraocular lens relative to the corneal topographic axis using anterior segment optical coherence tomography

      Assessment of tilt and decentration of crystalline lens and intraocular lens relative to the corneal topographic axis using anterior segment optical coherence tomography

      Purpose To investigate the tilt and decentration of the crystalline lens and the intraocular lens (IOL) relative to the corneal topographic axis using anterior segment ocular coherence tomography (AS-OCT). Methods A sample set of 100 eyes from 49 subjects (41 eyes with crystalline lenses and 59 eyes with IOLs) were imaged using second generation AS-OCT (CASIA2, TOMEY) in June and July 2016 at Okayama University. Both mydriatic and non-mydriatic images were obtained, and the tilt and decentration of the crystalline lens and the IOL were quantified. The effects of pupil dilation on measurements were also assessed. Results The crystalline lens ...

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    8. Factors affecting choroidal vascular density in normal eyes: Quantification using en face swept-source optical coherence tomography

      Factors affecting choroidal vascular density in normal eyes: Quantification using en face swept-source optical coherence tomography

      Purpose To quantify the vascular density of the choroid of normal eyes and to identify the influencing factors using en face images obtained with swept-source optical coherence tomography (SS-OCT). Design A prospective cross-sectional study. Methods One hundred and sixty-three eyes of 163 healthy volunteers (83 female; mean age 42.2 ± 22.6 years) with a corrected visual acuity of ≥1.0 were investigated. En face SS-OCT images of the choroid were used for quantitative assessment of the vascular density in the large choroid vessel layer. Relationships between vascular density of the choroid and age, sex, refractive error (RE), axial length ...

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    1-8 of 8
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    Factors affecting choroidal vascular density in normal eyes: Quantification using en face swept-source optical coherence tomography Assessment of tilt and decentration of crystalline lens and intraocular lens relative to the corneal topographic axis using anterior segment optical coherence tomography Characteristics of early filtering blebs that predict successful trabeculectomy identified via three-dimensional anterior segment optical coherence tomography Factors affecting foveal avascular zone in healthy eyes: An examination using swept-source optical coherence tomography angiography Assessment of lamellar macular hole and macular pseudohole with a combination of en face and radial B-scan optical coherence tomography imaging Impact of Cataract Surgery on Filtering Bleb Morphology Identified Via Swept-source Three-dimensional Anterior Segment Optical Coherence Tomography Impact of Cataract Surgery on Filtering Bleb Morphology Identified Via Swept-source 3-dimensional Anterior Segment Optical Coherence Tomography Concerns about the interpretation of OCT and fundus findings in COVID-19 patients in recent Lancet publication Retinal Vascular Features in Ocular Blunt Trauma by Optical Coherence Tomography Angiography Non-invasive imaging of a choroidal macrovessel Correlation between optical coherence tomography, multifocal electroretinogram findings and visual acuity in diabetic macular edema Digital Wavefront Sensing