Anatomical and physiological considerations in scleral lens wear: Eyelids and tear film

Scleral lenses can affect a range of anterior segment structures including the eyelids and the tears. The eyelids, consisting of the outer skin layer, the middle tarsal plate, and the posterior palpebral conjunctiva, provide physical protection and house the meibomian glands and cilia which have imp...

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Bibliographic Details
Published in:Contact lens & anterior eye 2021-10, Vol.44 (5), p.101407-101407, Article 101407
Main Authors: Walker, Maria K., Schornack, Muriel M., Vincent, Stephen J.
Format: Article
Language:English
Subjects:
Eyelids
Ocular surface
Scleral lens
Tear film
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Summary:Scleral lenses can affect a range of anterior segment structures including the eyelids and the tears. The eyelids, consisting of the outer skin layer, the middle tarsal plate, and the posterior palpebral conjunctiva, provide physical protection and house the meibomian glands and cilia which have important and unique functions. Tears consist of a mix of aqueous, mucus, and lipidomic components that serve vital functions of lubricity, protection, and nourishment to the ocular surface. Both the eyelids and the tear film interact directly with scleral lenses on the eye and can affect but also be impacted by scleral lens wear. The purpose of this paper is to review the anatomy and physiology of the eyelids and tear film, discuss the effects and impacts of the scleral lenses on these structures, and identify areas that require further research.
ISSN:1367-0484
1476-5411
DOI:10.1016/j.clae.2021.01.002