1. Articles from Monisha Esther Nongpiur

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    1. Digital Gonioscopy based on Three-dimensional Anterior Segment Optical Coherence Tomography: an international multicenter study

      Digital Gonioscopy based on Three-dimensional Anterior Segment Optical Coherence Tomography: an international multicenter study

      Objective: To develop and evaluate the performance of a three-dimensional deep-learning based automated digital gonioscopy system (3D DGS) in detecting two major characteristics in eyes suspected to have primary angle closure glaucoma (PACG): 1) narrow iridocorneal angles (static gonioscopy, Task I) and; 2) peripheral anterior synechiae (PAS) (dynamic gonioscopy, Task II) on optical coherence tomography scans. Design: International cross-sectional multicentre study. Subjects: A total of 1.112 million images of 8694 volume scans (2294 patients) from three centers were included in this study (Task I: training/internal validation/external testing - 4515, 1101, 2222 volume scans respectively; Task II: training/internal ...

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    2. Diagnostic accuracy of swept source optical coherence tomography classification algorithms for detection of gonioscopic angle closure

      Diagnostic accuracy of swept source optical coherence tomography classification algorithms for detection of gonioscopic angle closure

      Purpose To evaluate the performance of swept source optical coherence tomography (SS-OCT) to detect gonioscopic angle closure using different classification algorithms. Methods This was a cross-sectional study of 2028 subjects without ophthalmic symptoms recruited from a community-based clinic. All subjects underwent gonioscopy and SS-OCT (Casia, Tomey Corporation, Nagoya, Japan) under dark room conditions. For each eye, 8 out of 128 frames (22.5° interval) were selected to measure anterior chamber parameters namely anterior chamber width, depth, area and volume (ACW, ACD, ACA, and ACV), lens vault (LV), iris curvature (IC), iris thickness (IT) from 750 µm and 2000 µm from ...

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    1-2 of 2
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  2. Topics in the News

    1. (1 articles) Singapore Eye Research Institute
    2. (1 articles) Sun Yat-Sen University
    3. (1 articles) National University of Singapore
    4. (1 articles) Tomey Corporation
    5. (1 articles) University of Tokyo
    6. (1 articles) University College London
    7. (1 articles) University of Queensland
    8. (1 articles) University of Miami
    9. (1 articles) Topcon Medical Systems
    10. (1 articles) Carl Zeiss Meditec
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