抄録
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.
| 本文言語 | English |
|---|---|
| ホスト出版物のタイトル | Encyclopedia of the Eye, Four-Volume Set |
| 出版社 | Elsevier |
| ページ | 263-268 |
| ページ数 | 6 |
| ISBN（電子版） | 9780123742032 |
| ISBN（印刷版） | 9780123741981 |
| DOI | |
| 出版ステータス | Published - 2010 1月 1 |
ASJC Scopus subject areas
- 医学（全般）