Articles from Tin Aung

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  1. Screening for Narrow Angles in the Singapore Population: Evaluation of New Noncontact Screening Methods

    Explore Article OphSource (Sep 30 2008) Ophthalmology

    Purpose: To assess the screening effectiveness of 3 new noncontact devices, the scanning peripheral anterior chamber depth analyzer (SPAC) (Takagi, Nagano, Japan), which measures peripheral anterior chamber depth (ACD); IOLMaster (Carl Zeiss Meditec, Jena, Germany), which measures central ACD; and Visante anterior segment optical coherence tomography (AS-OCT) (Visante, Carl Zeiss Meditec, Dublin, CA), which images the angles, and to compare these instruments with gonioscopy in identifying people with narrow angles ... (Read Full Article)

    Comment on Article Mentions:   Zeiss Visante OCT   Carl Zeiss Meditec   David S. Friedman

  2. Changes in Angle Configuration After Phacoemulsification Measured by Anterior Segment Optical Coherence Tomography.

    Explore Article Journal of Glaucoma (Sep 15 2008) Ophthalmology

    Purpose: To measure changes in angle width after phacoemulsification and intraocular lens (IOL) implantation using anterior segment optical coherence tomography (AS-OCT). Materials and Methods: Twenty-one patients undergoing cataract surgery were recruited from the National University Hospital, Singapore. AS-OCT images were obtained of nasal and temporal angle quadrants before and at 1-month after surgery. Optical measurements of central anterior chamber depth were obtained, and gonioscopic measurement of angle width was recorded. ... (Read Full Article)

    Comment on Article Mentions:   David Huang   Keck School of Medicine   David S. Friedman

  3. Quantitative Analysis of Anterior Segment Optical Coherence Tomography Images: the Zhongshan Angle Assessment Program

    Explore Article BJO Online (Jul 9 2008) Ophthalmology

    Purpose: To describe a new image analysis method and software for anterior chamber images obtained by the anterior-segment optical coherence tomography (AS-OCT).and to assess its intraobserver and interobserver measurement reproducibility. Methods: Twenty 8-bit grayscale 600 x 300 AS-OCT images with apparent wide angles and twenty images with apparent narrow angles were consecutively selected from a database. Two glaucoma fellowship-trained ophthalmologists used proprietary image analysis software to analyze the images twice. ... (Read Full Article)

    Comment on Article Mentions:   Zeiss Visante OCT   David S. Friedman   Carl Zeiss Meditec

  4. Assessment of the Scleral Spur in Anterior Segment Optical Coherence Tomography Images

    Explore Article Archives of Ophthalmology (Feb 10 2008) Ophthalmology

    Objective  To assess visibility of the scleral spur in anterior segment optical coherence tomography (AS-OCT) images. Methods  This cross-sectional observational study included 502 participants aged 50 years or older who had no previous ophthalmic problems and were recruited from a community clinic in Singapore. All participants underwent gonioscopy and AS-OCT (Visante; Carl Zeiss Meditec, Dublin, California). Scleral spur location was assessed in AS-OCT images by 2 examiners with glaucoma subspecialty ... (Read Full Article)

    Comment on Article Mentions:   Carl Zeiss Meditec   David S. Friedman   Zeiss Visante OCT

  5. Corneal Imaging with Anterior Segment Optical Coherence Tomography for Lamellar Keratoplasty Procedures

    Explore Article ScienceDirect (Nov 3 2007) Ophthalmology

    Ten eyes of eight patients with pathologies involving the corneal stroma and sparing the Descemet membrane (DM) were included in this study conducted at a tertiary care hospital. The indications for DALK included corneal clouding attributable to mucopolysaccharidoses (n = 2), macular corneal dystrophy (n = 5), lattice corneal dystrophy (n = 1), granular corneal dystrophy (n = 1), and stromal scar attributable to infectious keratitis (n = 1). DALK ... (Read Full Article)

    Comment on Article Mentions:   Carl Zeiss Meditec   Zeiss Visante OCT

  6. Changes in anterior segment morphology in response to illumination and after laser iridotomy in Asian eyes: an anterior segment OCT study

    Explore Article BJO Online (Oct 18 2007) Ophthalmology

    Aim: Using the anterior segment optical coherence tomography (AS-OCT) to quantify changes in anterior segment morphology going from light to dark and following laser iridotomy (LI). Methods: Prospective observational study. 17 consecutive subjects without peripheral anterior synechiae undergoing LI were evaluated using gonioscopy and AS-OCT. Angle configuration including angle opening distance (AOD) at 500 microns anterior to the scleral spur, AOD500, trabecular-iris space area up to 750 microns from the ... (Read Full Article)

    Comment on Article Mentions:   John Hopkins University   David Huang   David S. Friedman

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