|Terms & Properties|
Concept Unique Identifier (CUI): C0010031
NCI Thesaurus Code: C12342 (see NCI Thesaurus info)
Semantic Type: Body Part, Organ, or Organ Component
NCIt Definition: A dome-shaped, transparent, avascular tissue covering the front of the eye. It is composed of five layers: squamous epithelium, Bowman's membrane, stroma, Descemet's membrane, and endothelium. Refraction of light contributing to eye's focusing ability is its characteristic function. It contains unmyelinated nerve endings which are responsible for the high sensitivity of the tissue.
RADLEX Definition: The transparent anterior portion of the fibrous coat of the eye consisting of five layers: stratified squamous corneal epithelium; bowman membrane; corneal stroma; descemet membrane; and mesenchymal corneal endothelium. It serves as the first refracting medium of the eye. It is structurally continuous with the sclera, avascular, receiving its nourishment by permeation through spaces between the lamellae, and is innervated by the ophthalmic division of the trigeminal nerve via the ciliary nerves and those of the surrounding conjunctiva which together form plexuses. (Cline et al., Dictionary of Visual Science, 4th ed) [MeSH]
NCI-GLOSS Definition: The transparent part of the eye that covers the iris and the pupil and allows light to enter the inside.
CDISC Definition: The transparent, avascular tissue covering the front of the eye and is continuous with the sclera.
CSP Definition: transparent part of the coat of the eyeball that covers the iris and pupil and admits light to the interior.
MSH Definition: The transparent anterior portion of the fibrous coat of the eye consisting of five layers: stratified squamous CORNEAL EPITHELIUM; BOWMAN MEMBRANE; CORNEAL STROMA; DESCEMET MEMBRANE; and mesenchymal CORNEAL ENDOTHELIUM. It serves as the first refracting medium of the eye. It is structurally continuous with the SCLERA, avascular, receiving its nourishment by permeation through spaces between the lamellae, and is innervated by the ophthalmic division of the TRIGEMINAL NERVE via the ciliary nerves and those of the surrounding conjunctiva which together form plexuses. (Cline et al., Dictionary of Visual Science, 4th ed)
Synonyms & Abbreviations: (see Synonym Details)
|Corneal structure (body structure)|
External Source Codes:
|NCI Thesaurus Code||C12342 (see NCI Thesaurus info)|
|AN||inflammation = KERATITIS; neoplasms = CORNEAL DISEASES (IM) + EYE NEOPLASMS (IM) + histological type of neoplasm (IM); /anat: consider CORNEAL TOPOGRAPHY||MSH|
|AQL||AB AH BS CH CY DE DG EM EN GD IM IR ME MI PA PH PP PS RE SE SU UL VI||MSH|
|AUTHORITY||Terminologia Anatomica 1998||FMA|
|CX||consider also terms at KERAT-||MSH|
|DATE_LAST_MODIFIED||Wed Aug 23 13:16:01 PDT 2000||FMA|
|HN||/transplantation was CORNEAL TRANSPLANTATION 1963-65; was CORNEA/transplantation 1966-89||MSH|
|PM||/transplantation was CORNEAL TRANSPLANTATION 1963-65; was CORNEA/transplantation 1966-89||MSH|
Additional Concept Data: (none)