Journal article

Optical Coherence Tomography Reveals Changes to Corneal Reflectivity and Thickness in Individuals with Tear Hyperosmolarity

Laura Adelaide Deinema, Algis Jonas Vingrys, Holly Rose Chinnery, Laura Elizabeth Downie

TRANSLATIONAL VISION SCIENCE & TECHNOLOGY | ASSOC RESEARCH VISION OPHTHALMOLOGY INC | Published : 2017

Abstract

PURPOSE: To investigate whether tear hyperosmolarity, a feature of dry eye disease (DED), affects central corneal thickness (CCT), corneal light reflectivity, and/or tear film reflectivity. METHODS: This prospective, cross-sectional study involved 48 participants (38 with hyperosmolar tears and 10 controls with normo-osmolar tears). Symptoms and signs of DED (tear osmolarity, sodium fluorescein tear break-up time, ocular surface staining, Schirmer test) were assessed. CCT, and the reflectivity of the cornea and the tear-epithelial interface were quantified relative to background noise using Fourier-domain optical coherence tomography (FD-OCT). RESULTS: CCT of eyes with severe tear hyperosmol..

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