Journal article

The Effects of Aging on Corneal and Ocular Surface Homeostasis in Mice

Manikkuwadura Eranda Harshan De Silva, Lisa J Hill, Laura E Downie, Holly R Chinnery

Investigative Ophthalmology & Visual Science | ASSOC RESEARCH VISION OPHTHALMOLOGY INC | Published : 2019

Abstract

Purpose: Aging is a risk factor for dry eye disease. The aim of this study was to investigate if aging is associated with a range of signs of dry eye disease, including tear hyperosmolarity, reduced nerve density, and increased dendritic cell number, in mice. Method: Healthy C57BL/6 female mice, aged 2 months (young, n = 10) and 22 months (aged, n = 11) were used. Clinical assessments included corneal sensitivity (Cochet-Bonnet esthesiometry), tear secretion (Phenol red thread test), tear film osmolarity (TearLab osmometer), and corneal thickness (optical coherence tomography). The sum length of the corneal superficial terminals and sub-basal nerves, density of vertical nerve projections, an..

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