1. Articles from Ching Yu Cheng

    1-3 of 3
    1. Evaluation of meridional scans for angle closure assessment with anterior segment swept-source optical coherence tomography

      Evaluation of meridional scans for angle closure assessment with anterior segment swept-source optical coherence tomography

      Background/aims As swept-source optical coherence tomography (SS-OCT) simultaneously obtains 128 meridional scans, it is important to identify which scans are playing the main role in classifying gonioscopic angle closure to simplify the analysis. We aimed to evaluate the diagnostic performance of every meridional scan in its ability to detect gonioscopic angle closure. Methods Observational study with 2027 phakic subjects consecutively recruited from a community polyclinic. Gonioscopy and SS-OCT were performed. Gonioscopic angle closure was defined as non-visibility of the posterior trabecular meshwork in ≥180° of the angle, while SS-OCT was defined as iridotrabecular contact anterior to the scleral spur ...

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    2. Understanding diagnostic disagreement in angle closure assessment between anterior segment optical coherence tomography and gonioscopy

      Understanding diagnostic disagreement in angle closure assessment between anterior segment optical coherence tomography and gonioscopy

      Background/aims Although being a more objective tool for assessment and follow-up of angle closure, reliability studies have reported a moderate diagnostic performance for anterior segment optical coherence tomography (OCT) technologies when comparing with gonioscopy as the reference standard. We aim to determine factors associated with diagnostic disagreement in angle closure when assessed by anterior segment swept source OCT (SS-OCT, CASIA SS-1000; Tomey, Nagoya, Japan) and gonioscopy. Methods Cross-sectional study. A total of 2027 phakic subjects aged ≥50 years, with no relevant previous ophthalmic history, were consecutively recruited from a community polyclinic in Singapore. Gonioscopy and SS-OCT (128 radial scans ...

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    3. Determinants of Quantitative Optic Nerve Measurements using Spectral Domain Optical Coherence Tomography in a Population-based Sample of Non-glaucomatous Subjects

      Determinants of Quantitative Optic Nerve Measurements using Spectral Domain Optical Coherence Tomography in a Population-based Sample of Non-glaucomatous Subjects
      Purpose: To evaluate the ocular and systemic factors influencing measurements of optic nerve head (ONH) parameters and retinal nerve fiber layer (RNFL) thickness with spectral-domain optical coherence tomography (SD-OCT) in healthy Chinese adults. Methods: Adults aged 40 to 80 years were consecutively recruited from the population-based Singapore Chinese Eye Study. Cirrus high-definition OCT (Carl Zeiss Meditec Inc, Dublin, CA) was used to measure ONH and RNFL parameters. A total of 542 eyes from 542 non-glaucoma Chinese subjects were analyzed. Univariable and multiple linear regression analyses were performed to examine the effects of a range of ocular (e.g., intraocular pressure ...
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    1-3 of 3
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  2. Topics in the News

    1. (3 articles) Singapore Eye Research Institute
    2. (3 articles) Tin Aung
    3. (3 articles) Mani Baskaran
    4. (2 articles) National University of Singapore
    5. (1 articles) Johns Hopkins University
    6. (1 articles) The Chinese University of Hong Kong
    7. (1 articles) University of Melbourne
    8. (1 articles) Chris K. S. Leung
    9. (1 articles) Tien Yin Wong
    10. (1 articles) Carl Zeiss Meditec
    11. (1 articles) Cardiovascular Research Foundation
    12. (1 articles) University of Tsukuba
    13. (1 articles) Wakayama Medical University
    14. (1 articles) Georgetown University
    15. (1 articles) Takashi Tanimoto
    16. (1 articles) Gary S. Mintz
    17. (1 articles) Atsushi Tanaka
    18. (1 articles) Takashi Akasaka
    19. (1 articles) Hector M. Garcia-Garcia
    20. (1 articles) Takashi Kubo
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