Corneal epithelium
5306317
220064924
2008-06-18T03:10:44Z
71.31.40.176
/* Cornea Cell LASIK Complication */ Non-issue with PRK.
{{Infobox Anatomy |
Name = Corneal epithelium |
Latin = e. anterius corneae |
GraySubject = 225 |
GrayPage = 1007 |
Image = Gray871.png |
Caption = Vertical section of human cornea from near the margin. (Waldeyer.) Magnified. <BR>1. Epithelium. <BR>2. [[Bowman's membrane|Anterior elastic lamina]]. <BR>3. [[substantia propria]]. <BR>4. [[Descemet's membrane|Posterior elastic lamina]]. <BR>5. [[Endothelium]] of the [[anterior chamber]]. <BR>a. Oblique fibers in the anterior layer of the [[substantia propria]]. <BR>b. Lamellæ the fibers of which are cut across, producing a dotted appearance. <BR>c. [[Corneal]] corpuscles appearing [[fusiform]] in section. <BR>d. Lamellæ the fibers of which are cut longitudinally. <BR>e. Transition to the [[sclera]], with more distinct fibrillation, and surmounted by a thicker [[epithelium]]. <BR>f. Small blood vessels cut across near the margin of the [[cornea]]. |
Image2 = |
Caption2 = |
System = |
Precursor = |
MeshName = Epithelium,+corneal |
MeshNumber = A09.371.060.217.325|
DorlandsPre = e_13 |
DorlandsSuf = 12339086 |
}}
{{Expand|date=September 2007}}
The '''corneal epithelium''' ('''epithelium corneæ anterior layer''') is made up of epithelial tissue and covers the front of the [[cornea]]. It consists of several layers of cells.
The cells of the deepest layer are columnar; then follow two or three layers of polyhedral cells, the majority of which are prickle cells similar to those found in the [[stratum mucosum]] of the cuticle.
Lastly, there are three or four layers of [[squamous]] cells, with flattened [[cell nucleus|nuclei]].
== Cornea Cell LASIK Complication ==
Epithelial ingrowth is a LASIK complication in which cells from the cornea surface layer (epithelial cells) begin to grow underneath the corneal flap.
Epithelial ingrowth is a rarely occurring [[LASIK]] complication, appearing in less than one percent of LASIK procedures. However, the incidence of epithelial ingrowth appears to be higher after subsequent enhancement LASIK procedures.
This complication is not present in [[PRK]] or other non-flap vision correction procedures.
==See also==
* [[Stratified squamous epithelium]]
== Disorders ==
*[[Recurrent corneal erosion]]
== External links ==
[http://www.lasikbenefitsusa.com/lasik-facts/corneaingrowth.html Epithelium Ingrowth After LASIK]
{{Eye}}
[[Category:Eye]]