1. Articles from Li-Lian Foo

    1-3 of 3
    1. Subgrouping of Primary Angle-Closure Suspects Based on Anterior Segment Optical Coherence Tomography Parameters

      Subgrouping of Primary Angle-Closure Suspects Based on Anterior Segment Optical Coherence Tomography Parameters

      Purpose To identify subgroups of primary angle-closure suspects (PACS) based on anterior segment optical coherence tomography (AS-OCT) and biometric parameters. Design Cross-sectional study. Participants We evaluated 243 PACS subjects in the primary group and 165 subjects in the validation group. Methods Participants underwent gonioscopy and AS-OCT (Carl Zeiss Meditec, Dublin, CA). Customized software (Zhongshan Angle Assessment Program, Guangzhou, China) was used to measure AS-OCT parameters. An agglomerative hierarchical clustering method was first used to determine the optimum number of parameters to be included in the determination of subgroups. The best number of subgroups was then determined using Akaike Information Criterion ...

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    2. Classification Algorithms Based on Anterior Segment Optical Coherence Tomography Measurements for Detection of Angle Closure

      Classification Algorithms Based on Anterior Segment Optical Coherence Tomography Measurements for Detection of Angle Closure

      Objective: A recent study found that a combination of 6 anterior segment optical coherence tomography (ASOCT) parameters (anterior chamber area, volume, and width [ACA, ACV, ACW], lens vault [LV], iris thickness at 750 μm from the scleral spur, and iris cross-sectional area) explain >80% of the variability in angle width. The aim of this study was to evaluate classification algorithms based on ASOCT measurements for the detection of gonioscopic angle closure.Design: Cross-sectional study.Participants: We included 2047 subjects aged ≥50 years.Methods: Participants underwent gonioscopy and ASOCT (Carl Zeiss Meditec, Dublin, CA). Customized software (Zhongshan Angle Assessment Program, Guangzhou ...

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    3. Comparison of scanning laser ophthalmoscopy and high-definition optical coherence tomography measurements of optic disc parameters

      Comparison of scanning laser ophthalmoscopy and high-definition optical coherence tomography measurements of optic disc parameters

      Objective To investigate the agreement between scanning laser ophthalmoscopy (Heidelberg retinal tomograph 3; HRT-3) and high-definition optical coherence tomography (HD–OCT) for measurements of optic nerve head (ONH) parameters. Methods As part of a population-based cross-sectional study, 913 consecutive Chinese subjects aged 40 years and older underwent HRT-3 and HD–OCT imaging of the ONH after pupillary dilation. Limits of agreement (LOA) derived from Bland–Altman analysis were calculated for ONH measurements. Results The mean age (±SD) of study participants was 54.2±7.2 years and 52.0% were men. The two instruments showed no difference in mean optic ...

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    1-3 of 3
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  2. Topics in the News

    1. (3 articles) National University of Singapore
    2. (3 articles) Tin Aung
    3. (2 articles) Sun Yat-Sen University
    4. (2 articles) Johns Hopkins University
    5. (2 articles) Duke University
    6. (2 articles) Singapore Eye Research Institute
    7. (2 articles) David S. Friedman
    8. (2 articles) Tien Yin Wong
    9. (2 articles) Carl Zeiss Meditec
    10. (1 articles) Mani Baskaran
    11. (1 articles) University of Illinois at Urbana-Champaign
    12. (1 articles) Bern University Hospital
    13. (1 articles) Ruikang K. Wang
    14. (1 articles) Stephan Windecker
    15. (1 articles) Stephen A. Boppart
    16. (1 articles) Carl Zeiss Meditec
    17. (1 articles) Zeiss Cirrus HD-OCT
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    Comparison of scanning laser ophthalmoscopy and high-definition optical coherence tomography measurements of optic disc parameters Classification Algorithms Based on Anterior Segment Optical Coherence Tomography Measurements for Detection of Angle Closure Subgrouping of Primary Angle-Closure Suspects Based on Anterior Segment Optical Coherence Tomography Parameters Intricacies in the analysis and interpretation of optical coherence tomography findings The University of Illinois at Urbana-Champaign Announces Illinois Proof-of-Concept Program Award Recipients Subfoveal Choroidal Thickness in Patients with Chronic Heart Failure Analyzed by Spectral-Domain Optical Coherence Tomography Full anterior segment biometry with extended imaging range spectral domain optical coherence tomography at 1340 nm Agreement of Retinal Nerve Fiber Layer Defect Location Between Red-Free Fundus Photography and Cirrus HD-OCT Maps Interexaminer Reproducibility of Optical Coherence Tomography for Measuring the Tear Film Meniscus Monitor Corneal Epithelial Healing Under Bandage Contact Lens Using Ultrahigh-Resolution Optical Coherence Tomography After Pterygium Surgery New Endoscopic Technology Helps Diagnose Esophageal Cancer Quickly Visualisation of contrast-enhanced intraoperative optical coherence tomography with indocyanine green