1. Marco Yu

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    1. Mentioned In 17 Articles

    2. Comparison of corneal measurements in keratoconus using swept-source optical coherence tomography and combined Placido–Scheimpflug imaging

      Comparison of corneal measurements in keratoconus using swept-source optical coherence tomography and combined Placido–Scheimpflug imaging
      Purpose The aim of this study was to provide a comprehensive comparison of reliability of corneal topographic measurements in keratoconic eyes using swept-source optical coherence tomography (OCT) and a combined PlacidoScheimpflug imaging. Methods A total of 30 eyes of 30 patients were included. The mean age was 31.2 8.4 years. Two consecutive topographic measurements were obtained for one eye of each patient using swept-source OCT (CASIA) and combined ...
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      Mentions: Marco Yu
    3. Longitudinal Evaluation of Cornea With Swept-Source Optical Coherence Tomography and Scheimpflug Imaging Before and After Lasik

      Longitudinal Evaluation of Cornea With Swept-Source Optical Coherence Tomography and Scheimpflug Imaging Before and After Lasik
      Abstract: Swept-source optical coherence tomography (OCT) is the latest advancement in anterior segment imaging. There are limited data regarding its performance after laser in situ keratomileusis (LASIK). We compared the reliability of swept-source OCT and Scheimpflug imaging for evaluation of corneal parameters in refractive surgery candidates with myopia or myopic astigmatism. Three consecutive measurements were obtained preoperatively and 1 year postoperatively using swept-source OCT and Scheimpflug imaging. The study parameters ...
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    4. Impact of segmentation errors and retinal blood vessels on retinal nerve fibre layer measurements using spectral-domain optical coherence tomography

      Impact of segmentation errors and retinal blood vessels on retinal nerve fibre layer measurements using spectral-domain optical coherence tomography
      Purpose To investigate the impact of retinal blood vessels and retinal nerve fibre layer (RNFL) segmentation errors on RNFL measurement. Methods One eye of 180 subjects (60 normal, 66 mild-to-moderate and 54 advanced glaucoma subjects) was randomly selected for RNFL imaging with a spectral-domain OCT. The boundaries of the RNFL detected by the instrument software were checked, and the segmentation errors were corrected by a customized computer program. The differences ...
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    5. Stromal Bed Thickness Measurement During Laser in Situ Keratomileusis Using Intraoperative Optical Coherence Tomography

      Stromal Bed Thickness Measurement During Laser in Situ Keratomileusis Using Intraoperative Optical Coherence Tomography
      Purpose: The aim of this study was to compare repeatability and agreement of stromal bed thickness (SBT) measurements with intraoperative spectral domain optical coherence tomography (SD-OCT) and ultrasound pachymetry (USP). Methods: The SBT was measured in 14 eyes of 14 patients during femtosecond laser in situ keratomileusis (LASIK). Intraoperative SD-OCT was positioned on the eye to acquire images after creation of LASIK flaps. Patients were then asked to sit in ...
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    6. Longitudinal Evaluation of Posterior Corneal Elevation after Laser Refractive Surgery Using Swept-Source Optical Coherence Tomography

      Longitudinal Evaluation of Posterior Corneal Elevation after Laser Refractive Surgery Using Swept-Source Optical Coherence Tomography
      ...phthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China , MBBS , Marco Yu x Marco Yu Search for articles by this author Affiliations * Department of Mathematics and Statistics, Hang ...
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    7. Intraoperative Pachymetry Using Spectral-Domain Optical Coherence Tomography during Accelerated Corneal Collagen Crosslinking

      Intraoperative Pachymetry Using Spectral-Domain Optical Coherence Tomography during Accelerated Corneal Collagen Crosslinking
      paccelerated corneal crosslinking (CXL). Methods. Intraoperative pachymetry was performed using SDOCT and ultrasound pachymetry (USP) in 6 eyes of 6 patients with keratoconus. Pachymetry readings were obtained at baseline, after epithelium removal and after 30 minutes of riboflavin instillation. SDOCT measurements of eyes with and without lid speculum during riboflavin instillation were compared. Results. There was no statistically significant difference in central corneal thickness (CCT) measurements between SDOCT and USP (
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    8. Corneal thickness and elevation measurements using swept source optical coherence tomography and slit scanning topography in normal and keratoconic eyes

      Corneal thickness and elevation measurements using swept source optical coherence tomography and slit scanning topography in normal and keratoconic eyes
      ...phy and slit scanning topography in normal and keratoconic eyes 1. Vishal Jhanji MD^*, 2. Bingzhi Yang MB, 3. Marco Yu BSc, 4. Cong Ye MB, 5. Christopher KS Leung MD DOI: 10.1111/ceo.12113 © 2013 The Author. Clinical and...
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    9. Anterior Chamber Angle Imaging with Swept-Source Optical Coherence Tomography: Measuring Peripheral Anterior Synechia in Glaucoma

      Anterior Chamber Angle Imaging with Swept-Source Optical Coherence Tomography: Measuring Peripheral Anterior Synechia in Glaucoma
      ...suring Peripheral Anterior Synechia in Glaucoma * Isabel Lai, MB, BS, * Heather Mak, BSc, * Gilda Lai, BSc, * Marco Yu, BSc, * Dennis S.C. Lam, MD, FRCOphth, * Christopher K.S. Leung, MD, MB, ChB Affiliations + Correspon...
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    10. Anterior Chamber Angle Imaging With Swept-Source Optical Coherence Tomography: Detecting the Scleral Spur, Schwalbe's Line, and Schlemm's Canal

      Anterior Chamber Angle Imaging With Swept-Source Optical Coherence Tomography: Detecting the Scleral Spur, Schwalbe's Line, and Schlemm's Canal
      Objective: To determine the visibility of the scleral spur (SS), Schwalbe's line (SL), and Schlemm's canal (SC) imaged by a swept-source optical coherence tomographer (OCT). Methods: One eye from each individual was randomly selected from 30 normal subjects and 30 patients with primary open-angle glaucoma for anterior segment imaging with a swept-source OCT. The angles were imaged with 2 protocols: (1) high-density (HD, a raster of 64 B-scans ...
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    11. Retinal Nerve Fiber Layer Imaging with Spectral-Domain Optical Coherence Tomography: Interpreting the RNFL maps in Healthy Myopic Eyes

      Retinal Nerve Fiber Layer Imaging with Spectral-Domain Optical Coherence Tomography: Interpreting the RNFL maps in Healthy Myopic Eyes
      Objective: To investigate the association between the distribution profile of the retinal nerve fiber layer (RNFL) bundles and myopia and its impact on interpretation of the RNFL map imaged by a spectral-domain optical coherence tomography (OCT). Methods: The RNFL of 189 myopic eyes from 103 normal healthy myopic participants was imaged by the Cirrus HD-OCT. The angle between the long axes of the superotemporal and inferotemporal RNFL bundles determined in ...
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    12. Optic Disc Imaging with Spectral-Domain Optical Coherence Tomography: Variability and Agreement Study with Heidelberg Retinal Tomograph

      Optic Disc Imaging with Spectral-Domain Optical Coherence Tomography: Variability and Agreement Study with Heidelberg Retinal Tomograph
      ...Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, PR China , * Marco Yu, BSc Affiliations + Department of Ophthalmology and Visual Sciences, The Chinese University of Hong K...
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    13. Anterior Chamber Angle Imaging with Swept-source Optical Coherence Tomography: An Investigation on Variability of Angle Measurement

      Anterior Chamber Angle Imaging with Swept-source Optical Coherence Tomography: An Investigation on Variability of Angle Measurement
      ...wept-source Optical Coherence Tomography: An Investigation on Variability of Angle Measurement 1. Shu Liu, 2. Marco Yu, 3. Cong Ye, 4. Dennis SC Lam and 5. Christopher KS Leung 1. Department of Ophthalmology and Visual S...
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  2. About Marco Yu

    Marco Yu is in the Department of Ophthalmology and Visual Sciences at The Chinese University of Hong Kong.