1. Topcon Medical Systems

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    1. Mentioned In 486 Articles

    2. Speckle reduction in optical coherence tomography images

      Speckle reduction in optical coherence tomography images
      An optical coherence tomography (OCT) image composed of a plurality of A-scans of a structure is analyzed by defining, for each A-scan, a set of neighboring A-scans surrounding the A-slices scan. Following an optional de-noising step, the neighboring A-scans are aligned in the imaging direction, then a matrix X is formed from the aligned A-scans, and matrix completion is performed to obtain a reduced speckle noise image.
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    3. Ophthalmic imaging apparatus and ophthalmic image processing apparatus

      Ophthalmic imaging apparatus and ophthalmic image processing apparatus
      An ophthalmic imaging apparatus of an embodiment includes a data acquisition unit, a blood vessel enhanced image forming unit, and a blood vessel gradient distribution determination unit. The data acquisition unit is configured to acquire a three dimensional data set of a fundus of a subject's eye using optical coherence tomography (OCT). The blood vessel enhanced image forming unit is configured to form a blood vessel enhanced image based ...
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    4. Deep learning based noise reduction method for automatic 3D segmentation of the anterior of lamina cribrosa in optical coherence tomography volumetric scans

      Deep learning based noise reduction method for automatic 3D segmentation of the anterior of lamina cribrosa in optical coherence tomography volumetric scans
      A deep-learning (DL) based noise reduction algorithm, in combination with a vessel shadow compensation method and a three-dimensional (3D) segmentation technique, has been developed to achieve, to the authors best knowledge, the first automatic segmentation of the anterior surface of the lamina cribrosa (LC) in volumetric ophthalmic optical coherence tomography (OCT) scans. The present DL-based OCT noise reduction algorithm was trained without the need of noise-free ground truth images by ...
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    5. Quantitative Comparison Of Microvascular Metrics On Three Optical Coherence Tomography Angiography Devices In Chorioretinal Disease

      Quantitative Comparison Of Microvascular Metrics On Three Optical Coherence Tomography Angiography Devices In Chorioretinal Disease
      ...rms. Patients and methods: All subjects were scanned on each of three OCT-A devices: Optovue Avanti Angiovue, Topcon DRI-OCT Triton Swept-Source OCT, and Zeiss Cirrus 5000-HD-OCT Angioplex. Two investigators independentl...
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    6. Assessment of Retinal Nerve Fiber Layer Thickness Using Optical Coherence Tomography in Patients with Type 2 Diabetes Mellitus

      Assessment of Retinal Nerve Fiber Layer Thickness Using Optical Coherence Tomography in Patients with Type 2 Diabetes Mellitus
      Background: Diabetic retinopathy (DR) is the most common ocular complication of diabetes mellitus (DM) and considered one of the leading causes of blindness in developed countries. Diabetic retinopathy is predominantly a microangiopathy in which high glucose levels can make small blood vessels particularly, vulnerable to damage. Objective: The aim of this work was to assess the thickness of peripapillary retinal nerve fiber layer (RNFL) measured by Swept Source optical coherence ...
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    7. Ophthalmic operation microscope

      Ophthalmic operation microscope
      In an ophthalmic operation microscope, an illumination optical system illuminates a patient's eye with illumination light. An observation optical system is used for observing the patient's eye illuminated. An objective lens is disposed in an observation optical path. An interference optical system splits light from a light source into measurement light and reference light, and detects interference light generated from returning light of the measurement light from the ...
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    8. Fundus analysis apparatus and fundus observation apparatus

      Fundus analysis apparatus and fundus observation apparatus
      A fundus analysis apparatus includes a storage, an area setting unit, and a morphological information generating unit. The storage is configured to store OCT information acquired by applying optical coherence tomography to the fundus of an eye. The area setting unit is configured to set a front area corresponding to a front surface of the lamina cribrosa and a rear area corresponding to a rear surface of the lamina cribrosa ...
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    9. Detection of missampled interferograms in frequency domain OCT with a k-clock

      Detection of missampled interferograms in frequency domain OCT with a k-clock
      Optical coherence tomography light sources can be non-linear and attempts to linearize them can lead to asynchrony between the light source and A-line scans and missampling in the scans causing signal noise. Accordingly, a system and methods are provided herein to detect missampling by obtaining a plurality of interferograms; providing at least two wavenumber reference signals at different wavenumbers, wherein the wavenumber reference signals comprise attenuated or enhanced portions of ...
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    10. Posterior staphylomas and scleral curvature in highly myopic children and adolescents investigated by ultra-widefield optical coherence tomography

      Posterior staphylomas and scleral curvature in highly myopic children and adolescents investigated by ultra-widefield optical coherence tomography
      ... Zeiss Meditec, Jena, Germany). Dilated stereoscopic fundus examinations, color fundus photography (TRC-50DX, Topcon, Tokyo, Japan; or Optos 200Tx scanning laser ophthalmoscopy; or Optos PLC, Dunfermline, Scotland, UK) w...
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    11. 1-15 of 486 1 2 3 4 ... 31 32 33 »
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  2. About Topcon Medical Systems

    Topcon Medical Systems

    Topcon Medical Systems.  Ophthalmology Systems.  Topcon Medical Systems (TMS), based in Paramus, NJ, is a leading developer and supplier of diagnostic equipment for the ophthalmic community. Topcon's mission is to make impossible ideas possible, by constantly developing new optical and measurement technologies. Our goal is simple: to provide you with the most innovative equipment so that you can better serve your patients.  For over 35 years, TMS has been leading the way with the most technically advanced instrumentation in the marketplace. Our product line comprises the largest selection of precision instruments from one manufacturer . . . providing products for a wide range of applications, including imaging, diagnostic, refractive, lens processing, surgical, and delivery. Whatever your particular instrument requirements, Topcon has the innovative solution you need.   Topcon Medical Systems is a wholly owned subsidiary of Topcon Corporation of Tokyo, Japan.