Tear film overview

M. Uchino; K. Tsubota

doi:10.1016/B978-0-12-374203-2.00047-6

Tear film overview

M. Uchino, K. Tsubota

Department of Ophthalmology

Research output: Chapter in Book/Report/Conference proceeding › Chapter

1 Citation (Scopus)

Abstract

The major functions of the tear film are to: (1) maintain a smooth surface for light refraction, (2) lubricate the eyelids, (3) supply the cornea with nutrients by transporting oxygen and a limited number of other nutrients to the avascular cornea, (4) provide white blood cells with access to the cornea and conjunctiva, (5) remove foreign materials from the cornea and conjunctiva, (6) defend the ocular surface from the pathogens via specific and nonspecific antibacterial substances, and (7) protect the ocular surface from free-radical insults with antioxidants such as ascorbic acid, lactoferrin, uric acid, and cysteine.

Original language	English
Title of host publication	Encyclopedia of the Eye, Four-Volume Set
Publisher	Elsevier
Pages	263-268
Number of pages	6
ISBN (Electronic)	9780123742032
ISBN (Print)	9780123741981
DOIs	https://doi.org/10.1016/B978-0-12-374203-2.00047-6
Publication status	Published - 2010 Jan 1

Keywords

Dry eye
Lipids
Mucins
Proteins
Tear-film function
Tear-film structure

ASJC Scopus subject areas

Medicine(all)

Access to Document

10.1016/B978-0-12-374203-2.00047-6

Cite this

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title = "Tear film overview",

abstract = "The major functions of the tear film are to: (1) maintain a smooth surface for light refraction, (2) lubricate the eyelids, (3) supply the cornea with nutrients by transporting oxygen and a limited number of other nutrients to the avascular cornea, (4) provide white blood cells with access to the cornea and conjunctiva, (5) remove foreign materials from the cornea and conjunctiva, (6) defend the ocular surface from the pathogens via specific and nonspecific antibacterial substances, and (7) protect the ocular surface from free-radical insults with antioxidants such as ascorbic acid, lactoferrin, uric acid, and cysteine.",

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N2 - The major functions of the tear film are to: (1) maintain a smooth surface for light refraction, (2) lubricate the eyelids, (3) supply the cornea with nutrients by transporting oxygen and a limited number of other nutrients to the avascular cornea, (4) provide white blood cells with access to the cornea and conjunctiva, (5) remove foreign materials from the cornea and conjunctiva, (6) defend the ocular surface from the pathogens via specific and nonspecific antibacterial substances, and (7) protect the ocular surface from free-radical insults with antioxidants such as ascorbic acid, lactoferrin, uric acid, and cysteine.

AB - The major functions of the tear film are to: (1) maintain a smooth surface for light refraction, (2) lubricate the eyelids, (3) supply the cornea with nutrients by transporting oxygen and a limited number of other nutrients to the avascular cornea, (4) provide white blood cells with access to the cornea and conjunctiva, (5) remove foreign materials from the cornea and conjunctiva, (6) defend the ocular surface from the pathogens via specific and nonspecific antibacterial substances, and (7) protect the ocular surface from free-radical insults with antioxidants such as ascorbic acid, lactoferrin, uric acid, and cysteine.

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KW - Lipids

KW - Mucins

KW - Proteins

KW - Tear-film function

KW - Tear-film structure

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M3 - Chapter

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SN - 9780123741981

SP - 263

EP - 268

BT - Encyclopedia of the Eye, Four-Volume Set

PB - Elsevier

ER -

Tear film overview

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

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