Cornea
Jump to navigation
Jump to search
Cornea | |
---|---|
![]() Schematic diagram o the human ee shawin the cornea as separatit frae the sclera bi the corneal limbus | |
![]() Vertical section o human cornea frae near the margin. (Waldeyer.) Magnified.
| |
Identifiers | |
MeSH | D00331 |
Dorlands /Elsevier | c_55/12259559 |
TA | A15.2.02.012 |
FMA | 58238 |
Anatomical terminology |
The cornea is the transparent front pairt o the ee that covers the iris, pupil, an anterior chamber. The cornea, wi the anterior chamber an lens, refracts licht, wi the cornea accoontin for approximately twa-thirds o the ee's tot optical pouer.[1][2] In humans, the refractive pouer o the cornea is approximately 43 dioptres.[3] While the cornea contreibutes maist o the ee's focusin pouer, its focus is fixed. The curvature o the lens, on the ither haund, can be adjuistit tae "tune" the focus dependin upon the object's distance. Medical terms relatit tae the cornea eften stairt wi the prefix "kerat-" frae the Greek wird κέρας, horn.
References[eedit | eedit soorce]
- ↑ Cassin, B.; Solomon, S. (1990). Dictionary of Eye Terminology. Gainesville, Florida: Triad Publishing Company.[page needit]
- ↑ Goldstein, E. Bruce (2007). Sensation & Perception (7th ed.). Canada: Thompson Wadsworth.[page needit]
- ↑ Najjar, Dany. "Clinical optics and refraction". Archived frae the oreeginal on 2008-03-23.Template:MEDRS