Anatomical and physiological considerations in scleral lens wear: Eyelids and tear film |
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| Affiliation: | 1. University of Houston College of Optometry, The Ocular Surface Institute, Houston, USA;2. Mayo Clinic, Rochester, MN, USA;3. Queensland University of Technology (QUT), Centre for Vision and Eye Research, School of Optometry and Vision Science, Contact Lens and Visual Optics Laboratory, Queensland, Australia;1. Group of Optics and Visual Perception. Department of Optics, Pharmacology and Anatomy, University of Alicante, Spain;2. Department of Ophthalmology, Vithas Medimar International Hospital, Alicante, Spain;1. Korb & Associates, Boston, MA, USA;2. New England College of Optometry, Boston, MA, USA;3. University of Illinois at Chicago, Chicago, IL, USA;4. Illinois College of Optometry, Chicago, IL, USA;5. Ohio State University College of Optometry, Columbus, OH, USA;6. Mayo Clinic, Rochester, MN, USA |
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| Abstract: | 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. |
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| Keywords: | Scleral lens Eyelids Tear film Ocular surface |
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