1. Articles from Natalia Porporato

    1-5 of 5
    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. Recent advances in anterior chamber angle imaging

      Recent advances in anterior chamber angle imaging

      Differentiating the two main forms of primary glaucoma (open-angle and closed-angle glaucoma) depends on the correct assessment of the anterior chamber angle (ACA). This assessment will determine the management plan and prognosis for the disease. The standard method of examining the angle has been, for many years, slit-lamp gonioscopy. This method, although clinically still useful, is less robust for patient follow up and clinical research, given its low reproducibility. Several imaging technologies have been developed in recent years to improve the evaluation of the ACA and overcome the shortcomings of gonioscopy. These recent advances include three-dimensional and 360° analysis by ...

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    3. 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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    4. Assessment of Circumferential Angle Closure with Swept-Source Optical Coherence Tomography: a community based study

      Assessment of Circumferential Angle Closure with Swept-Source Optical Coherence Tomography: a community based study

      Purpose To evaluate the diagnostic performance of swept-source optical coherence tomography (SS-OCT, CASIA SS-1000, Tomey Corporation, Nagoya, Japan) for angle closure detection, in comparison with gonioscopy in a community setting. Design Reliability analysis. Methods A total of 2027 phakic subjects aged ≥50 years, with no previous history of glaucoma, laser (including peripheral iridotomy), intraocular surgery or ocular trauma, were consecutively recruited from a community polyclinic in Singapore. Gonioscopy was performed by a single trained ophthalmologist. SS-OCT angle scans, which obtain radial scans for the entire circumference of the angle, were analyzed by a single examiner, masked to the subject’s ...

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    5. Role of anterior segment optical coherence tomography in angle closure disease: a review

      Role of anterior segment optical coherence tomography in angle closure disease: a review

      This article aims to review the published literature pertaining to the use of anterior segment optical coherence tomography (AS-OCT) in the evaluation of angle closure disease. Searches on the available published literature were last conducted on June 15, 2017. Rated as Level I evidence, we found that AS-OCT has shown good sensitivity and moderate diagnostic accuracy to detect narrow angles when compared with gonioscopy. AS-OCT quantitative and qualitative parameters demonstrated strong association with the presence of gonioscopically closed-angles. This technology provides an objective non-contact method of assessing the angle that is well tolerated by the patient and correlates well with ...

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    1-5 of 5
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  2. Topics in the News

    1. (5 articles) Singapore Eye Research Institute
    2. (5 articles) Tin Aung
    3. (5 articles) Mani Baskaran
    4. (3 articles) Tomey Corporation
    5. (2 articles) David S. Friedman
    6. (1 articles) Massachusetts Eye and Ear Infirmary
    7. (1 articles) Johns Hopkins University
    8. (1 articles) National University of Singapore
    9. (1 articles) Harvard University
    10. (1 articles) Institute of Applied Physics
    11. (1 articles) Nicolaus Copernicus University
    12. (1 articles) Nizhny Novgorod State Medical Academy
    13. (1 articles) National University of Ireland, Galway
    14. (1 articles) University of Auckland
    15. (1 articles) Frederique Vanholsbeeck
    16. (1 articles) Natalia D. Gladkova
    17. (1 articles) Martin J. Leahy
    18. (1 articles) Optovue
    19. (1 articles) Optovue RTVue-100
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    Role of anterior segment optical coherence tomography in angle closure disease: a review Assessment of Circumferential Angle Closure with Swept-Source Optical Coherence Tomography: a community based study Understanding diagnostic disagreement in angle closure assessment between anterior segment optical coherence tomography and gonioscopy Recent advances in anterior chamber angle imaging Evaluation of meridional scans for angle closure assessment with anterior segment swept-source optical coherence tomography Supercontinuum generation in a chalcogenide all-solid hybrid microstructured optical fiber TRANS-SEROSAL MULTIMODAL OPTICAL COHERENCE TOMOGRAPHY FOR VISUALIZATION OF MICROSTRUCTURE AND BLOOD CIRCULATION OF THE SMALL INTESTINE WALL Quantum Optical Coherence Tomography using two photon joint spectrum detection (JS-Q-OCT) Nanosensitive optical coherence tomography to assess wound healing within the cornea Preclinical Model of Optical Coherence Tomography for High-Resolution Deep-Brain Imaging for Laser Ablation Point-wise correlations between 10-2 Humphrey visual field and OCT data in open angle glaucoma Optical coherence tomography angiography in nonarteritic anterior ischemic optic neuropathy due to optic nerve head drusen