1. Articles from Junichi Kiryu

    1-10 of 10
    1. Foveal avascular zone and macular vessel density after correction for magnification error in unilateral amblyopia using optical coherence tomography angiography

      Foveal avascular zone and macular vessel density after correction for magnification error in unilateral amblyopia using optical coherence tomography angiography

      Background To investigate the area of foveal avascular zone (FAZ) and macular vessel density (VD) after correction for magnification error in unilateral amblyopia using optical coherence tomography angiography (OCTA). Methods Participants comprised 15 patients with unilateral amblyopia due to anisometropia with or without strabismus (mean age, 9.8 ± 3.4 years; range, 6–17 years). OCTA images were obtained by using spectral-domain OCT with angiography software. The OCTA scanning protocol used was 3 × 3-mm volume scan centered on the fovea. OCTA images were corrected for magnification errors using individual axial length (AL), and an adjusted 2.3 × 2.3-mm square ...

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    2. Macular retinal and choroidal thickness in unilateral amblyopia using swept-source optical coherence tomography

      Macular retinal and choroidal thickness in unilateral amblyopia using swept-source optical coherence tomography

      Background To investigate macular retinal and choroidal thickness in amblyopic eyes compared to that in fellow and normal eyes using swept-source optical coherence tomography (SS-OCT). Methods This study examined 31 patients with hyperopic anisometropic amblyopia (6.9 ± 3.8 years, mean ± standard deviation), 15 patients with strabismic amblyopia without anisometropia (7.9 ± 4.2 years), and 24 age-matched controls (7.8 ± 3.3 years). Retinal and choroidal thickness was measured by 3D scans using SS-OCT. A 6-mm area around the fovea was automatically analyzed using the Early Treatment Diabetic Retinopathy Study map. The thickness from SS-OCT was corrected for magnification ...

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    3. Quantitative Analysis of Macular Inner Retinal Layer Using Swept-Source Optical Coherence Tomography in Patients with Optic Tract Syndrome

      Quantitative Analysis of Macular Inner Retinal Layer Using Swept-Source Optical Coherence Tomography in Patients with Optic Tract Syndrome

      Objective . To evaluate macular inner retinal layers using swept-source optical coherence tomography (SS-OCT) in patients with homonymous hemianopia due to optic tract syndrome (OTS). Methods . Sixteen eyes of 8 patients with OTS were studied. The macular retinal nerve fiber layer (mRNFL), ganglion cell layer and inner plexiform layer (GCL + IPL), and mRNFL and GCL + IPL (GCC) were measured by SS-OCT (DRI OCT-1 Atlantis®).The scanned area was divided into eight regions and two hemiretinae. Each retinal thickness of the OTS group was compared with that of the 25 control subjects. Results . The GCC thickness in the ipsilateral eyes was significantly ...

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    4. Time Course of Macular and Peripapillary Inner Retinal Thickness in Non-arteritic Anterior Ischaemic Optic Neuropathy Using Spectral-Domain Optical Coherence Tomography

      Time Course of Macular and Peripapillary Inner Retinal Thickness in Non-arteritic Anterior Ischaemic Optic Neuropathy Using Spectral-Domain Optical Coherence Tomography

      To report a time course of the ganglion cell complex (GCC) and circumpapillary retinal nerve fibre layer (cpRNFL) thicknesses using spectral-domain optical coherence tomography in patients with non-arteritic anterior ischaemic optic neuropathy (NAION), five patients with unilateral NAION were studied (the average age of 66.8 ± 7.8 years old). Forty-one age-matched normal controls were also enrolled. The GCC and cpRNFL thicknesses were measured at the initial visit and at 1, 3, 6, and 12 months using RTVue-100. The GCC thickness and the cpRNFL thickness of the patients were compared with those of the normal controls. The GCC thickness in ...

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    5. Sectoral analysis of the retinal nerve fiber layer thinning and its association with visual field loss in homonymous hemianopia caused by post-geniculate lesions using spectral-domain optical coherence tomography

      Sectoral analysis of the retinal nerve fiber layer thinning and its association with visual field loss in homonymous hemianopia caused by post-geniculate lesions using spectral-domain optical coherence tomography

      Purpose To report a sectoral analysis of circumpapillary retinal nerve fiber layer (cpRNFL) thinning and its association with visual field loss using spectral-domain optical coherence tomography (SD-OCT) in patients with homonymous hemianopia following acquired post-geniculate visual pathway damage. Patients and methods Seven patients with homonymous hemianopia due to unilateral acquired post-geniculate visual pathway lesions were studied. The average duration from the onset of brain lesions to the initial visit was 49.8 months. Forty-nine normal control subjects without visual field defects, as confirmed using a Humphrey visual field analyzer, were also enrolled. Measurement of the cpRNFL thickness was performed at ...

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    6. A comparison between amblyopic and fellow eyes in unilateral amblyopia using spectral-domain optical coherence tomography

      A comparison between amblyopic and fellow eyes in unilateral amblyopia using spectral-domain optical coherence tomography

      Purpose: To compare the macular retinal thickness and characteristics of optic nerve head (ONH) parameters in amblyopic and fellow eyes in patients with unilateral amblyopia. Patients and methods: A total of 21 patients with unilateral amblyopia (14 patients with anisometropic amblyopia, four patients with strabismic amblyopia, and three patients with both) were examined using spectral-domain optical coherence tomography. The mean age of the patients was 8.5±3.5 years. The examined parameters included the mean macular (full, inner, and outer), ganglion cell complex and circumpapillary retinal nerve fiber layer (cpRNFL) thicknesses, and ONH parameters (rim volume, nerve head volume ...

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    7. Reduced retinal ganglion cell complex thickness in patients with posterior cerebral artery infarction detected using spectral-domain optical coherence tomography

      Reduced retinal ganglion cell complex thickness in patients with posterior cerebral artery infarction detected using spectral-domain optical coherence tomography

      Purpose To report a reduction in macular ganglion cell complex (GCC) thickness detected with spectral-domain optical coherence tomography (SD-OCT) in patients with homonymous hemianopia following acquired cerebral damage. Methods We analyzed case reports of three patients with unilateral posterior cerebral artery (PCA) infarction. Three patients (aged 66, 68, and 71 years) with left homonymous hemianopia due to infarction of the right PCA territory were studied using SD-OCT. The duration of the lesions from the onset ranged from 12 to 36 months. Results In all of these patients, although optic atrophy and retinal nerve fiber layer defects were not detected on ...

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    8. Factors affecting imaging of spectral-domain optical coherence tomography in gas-filled eyes after macular-hole surgery

      Factors affecting imaging of spectral-domain optical coherence tomography in gas-filled eyes after macular-hole surgery

      Purpose We investigated factors affecting imaging of spectral-domain optical coherence tomography (SD-OCT) in gas-filled eyes after macular-hole (MH) surgery. Methods The study comprised 25 eyes in 23 patients, eight men and 15 women, with a mean age of 66.9 (48–77) years, all of whom had undergone vitrectomy for MH. Sulfur hexafluoride (SF6) gas was used as a tamponade, and the patients were maintained in a prone position after surgery. The SD-OCT imaging was performed on postoperative days 1 and 2. Results The success rate of imaging was 88.0% (22/25 eyes) on postoperative day 1 and 95 ...

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    1-10 of 10
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    Factors affecting imaging of spectral-domain optical coherence tomography in gas-filled eyes after macular-hole surgery Reduced retinal ganglion cell complex thickness in patients with posterior cerebral artery infarction detected using spectral-domain optical coherence tomography A comparison between amblyopic and fellow eyes in unilateral amblyopia using spectral-domain optical coherence tomography Sectoral analysis of the retinal nerve fiber layer thinning and its association with visual field loss in homonymous hemianopia caused by post-geniculate lesions using spectral-domain optical coherence tomography Time Course of Macular and Peripapillary Inner Retinal Thickness in Non-arteritic Anterior Ischaemic Optic Neuropathy Using Spectral-Domain Optical Coherence Tomography Quantitative Analysis of Macular Inner Retinal Layer Using Swept-Source Optical Coherence Tomography in Patients with Optic Tract Syndrome Macular retinal and choroidal thickness in unilateral amblyopia using swept-source optical coherence tomography Preferential atrophy of the central retinal ganglion cells in homonymous hemianopia due to acquired retrogeniculate lesions demonstrated using swept-source optical coherence tomography Retinal Nerve Fiber Layer and Peripapillary Capillary Density Reduction Detected Using Optical Coherence Tomography Enface Images and Angiography in Optic Tract Syndrome Foveal avascular zone and macular vessel density after correction for magnification error in unilateral amblyopia using optical coherence tomography angiography Combining Deep Learning With Optical Coherence Tomography Imaging to Determine Scalp Hair and Follicle Counts Efficacy and Safety of Laser‐Assisted Combination Chemotherapy: An Explorative Imaging‐Guided Treatment With 5‐Fluorouracil and Cisplatin for Basal Cell Carcinoma