Journal
OCULAR SURFACE
Volume 24, Issue -, Pages 148-155Publisher
ELSEVIER
DOI: 10.1016/j.jtos.2022.04.001
Keywords
Contact lens; Meibomian gland; Dry eye; Hydrogel; Gas permeable; Meibography
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This review summarizes the evidence on how contact lens wear affects the morphology and secretion of the meibomian glands, with key factors such as duration, type, design, and material of the lenses influencing the extent of these changes.
Despite years of experience with contact lenses, controversy remains as to whether contact lenses adversely impact the meibomian glands (MG). This review summarizes the present body of evidence, showing that contact lens wear is associated with alterations in MG morphology (up to 80% higher gland atrophy compared to non wearers) and qualitative changes in MG secretion. Key factors such as duration of contact lens wear, contact lens type (e.g., soft vs. rigid), edge design, and material modulus of elasticity are discussed in relation to the extent of MG morphological changes, the quality of MG secretion and other ocular surface parameters. Longitudinal studies of sufficient statistical power are needed to better understand how contact lens wear affects the MG, risk factors, and the clinical sequelae of these changes.
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