1. Articles from Robert Brass

    1-3 of 3
    1. Subclinical keratoconus detection by pattern analysis of corneal and epithelial thickness maps with optical coherence tomography

      Subclinical keratoconus detection by pattern analysis of corneal and epithelial thickness maps with optical coherence tomography

      Purpose To screen for subclinical keratoconus by analyzing corneal, epithelial, and stromal thickness map patterns with Fourier-domain optical coherence tomography (OCT). Setting Four centers in the United States. Design Cross-sectional observational study. Methods Eyes of normal subjects, subclinical keratoconus eyes, and the topographically normal eye of a unilateral keratoconus patient were studied. Corneas were scanned using a 26 000 Hz Fourier-domain OCT system (RTVue). Normal subjects were divided into training and evaluation groups. Corneal, epithelial, and stromal thickness maps and derived diagnostic indices, including pattern standard deviation (PSD) variables and pachymetric map–based keratoconus risk scores, were calculated from the ...

      Read Full Article
    2. Keratoconus diagnosis with optical coherence tomography–based pachymetric scoring system

      Keratoconus diagnosis with optical coherence tomography–based pachymetric scoring system

      Purpose To develop an optical coherence tomography (OCT) pachymetry map–based keratoconus risk scoring system. Settings Doheny Eye Institute, University of Southern California, Los Angeles, California, and Brass Eye Center, New York, New York, USA; Department of Ophthalmology, Affiliated Eye Hospital of Wenzhou Medical College, Wenzhou, China. Design Cross-sectional study. Methods Fourier-domain OCT was used to acquire corneal pachymetry maps in normal and keratoconus subjects. Pachymetric variables were minimum, minimum−median, superior–inferior (S–I), superonasal–inferotemporal (SN–IT), and the vertical location of the thinnest cornea (Ymin). A logistic regression formula and a scoring system were developed based on ...

      Read Full Article
    3. Corneal Epithelial Thickness Mapping by Fourier-Domain Optical Coherence Tomography in Normal and Keratoconic Eyes

      Corneal Epithelial Thickness Mapping by Fourier-Domain Optical Coherence Tomography in Normal and Keratoconic Eyes

      Objective To map the corneal epithelial thickness with Fourier-domain optical coherence tomography (OCT) and to develop epithelial thickness–based variables for keratoconus detection. Design Cross-sectional observational study. Participants One hundred forty-five eyes from 76 normal subjects and 35 keratoconic eyes from 22 patients. Methods A 26 000-Hz Fourier-domain OCT system with 5-μm axial resolution was used. The cornea was imaged with a Pachymetry+Cpwr scan pattern (6-mm scan diameter, 8 radials, 1024 axial-scans each, repeated 5 times) centered on the pupil. Three scans were obtained at a single visit in a prospective study. A computer algorithm was developed to ...

      Read Full Article
    1-3 of 3
  1. Categories

    1. Applications:

      Art, Cardiology, Dentistry, Dermatology, Developmental Biology, Gastroenterology, Gynecology, Microscopy, NDE/NDT, Neurology, Oncology, Ophthalmology, Other Non-Medical, Otolaryngology, Pulmonology, Urology
    2. Business News:

      Acquisition, Clinical Trials, Funding, Other Business News, Partnership, Patents
    3. Technology:

      Broadband Sources, Probes, Tunable Sources
    4. Miscellaneous:

      Jobs & Studentships, Student Theses, Textbooks
  2. Topics in the News

    1. (3 articles) Center for Ophthalmic Optics and Lasers
    2. (3 articles) Oregon Health & Science University
    3. (1 articles) University of Southern California
    4. (1 articles) Fudan University
    5. (1 articles) Capital Medical University
  3. Popular Articles

  4. Picture Gallery

    Corneal Epithelial Thickness Mapping by Fourier-Domain Optical Coherence Tomography in Normal and Keratoconic Eyes Keratoconus diagnosis with optical coherence tomography–based pachymetric scoring system Subclinical keratoconus detection by pattern analysis of corneal and epithelial thickness maps with optical coherence tomography Trojan-Horse Diameter-Reducible Nanotheranostics for Macroscopic/Microscopic Imaging-Monitored Chemo-Antiangiogenic Therapy Thickness of retinal pigment epithelium–Bruch’s membrane complex in adult Chinese using optical coherence tomography Interocular symmetry of optical coherence tomography parameters in healthy children and adolescents Fluorescein Leakage and Optical Coherence Tomography Angiography Features of Microaneurysms in Diabetic Retinopathy Cross-free in both lateral and axial directions Fourier-domain full-field optical coherence tomography Microperimetry, Humphrey field analyzer, and optical coherence tomography in detecting glaucoma: a comparative performance study Scanning optimization of an electrothermally-actuated MEMS mirror for applications in optical coherence tomography endoscopy Near-infrared active superparamagnetic iron oxide nanoparticles for magnetomotive optical coherence tomography imaging and magnetic hyperthermia therapeutic applications Optical Coherence Tomography Identifies Visual Pathway Involvement Earlier than Visual Function Tests in Children with MRI-Verified Optic Pathway Gliomas