corneal endothelium


Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.
Related to corneal endothelium: Corneal epithelium

corneal endothelium 

The posterior layer of the cornea consisting of a single layer of cells, about 5 μm thick, bound together and predominantly hexagonal in shape. The posterior border is in direct contact with the aqueous humour while the anterior border is in contact with Descemet's membrane. The endothelium is the structure responsible for the relative dehydration of the corneal stroma. The endothelium receives most of its energy from the oxidative breakdown of carbohydrates via the Krebs cycle. In the normal adult eye the cell density varies from around 3000 cells/mm2 in the centre of the cornea to about 2000 cells/mm2 in the periphery. With age, disease or trauma the density of cells decreases but with disease or trauma this reduction may affect corneal transparency, as some fluid then leaks into the cornea. See endothelial bedewing; endothelial blebs; cornea guttata; specular reflection illumination; specular microscope; phacoemulsification; endothelial polymegethism.
References in periodicals archive ?
This was to include sufficient number of people from all age groups to estimate the characteristics of corneal endothelium. We used non-contact specular microscope for measurement of CCT and ECD.
However, none of these previously mentioned studies used the vital staining technique to evaluate the corneal endothelium of dogs.
Engineered basement membranes for regenerating the corneal endothelium. Adv Healthc Mater 2016;5:2942-50.
Shahdadfar, "Substrates for expansion of corneal endothelial cells towards bioengineering of human corneal endothelium," Journal of Functional Biomaterials, vol.
Kay et al., "Involvement of cyclin D and p27 in cell proliferation mediated by ROCK inhibitors Y-27632 and Y-39983 during corneal endothelium wound healing," Investigative Ophthalmology & Visual Science, vol.
The human corneal endothelium in keratoconus: a specular microscopic study Arch Ophthalmol.
Van Horn, "The role of Thyroid hormone in the development of chick corneal endothelium and epithelium," Investigative Ophthalmology & Visual Science, vol.
Amano, "Morphological study of corneal endothelium and corneal thickness in pseudoexfoliation syndrome," Japanese Journal of Ophthalmology, vol.
The anterior chamber maintainer, which facilitates ophthalmological surgical procedures and reduces iatrogenic damage to the iris, corneal endothelium, and lens, has been used in the management of hard nuclear cataract lens [3], subluxation in young patients [4], endoscopic goniotomy [5], traumatic hyphaemas [6], congenital pupillary-irislens membrane [7], and spherophakia [8].
The corneal endothelium in young males has more regular hexagonal cells than female subjects.
1b, 1c and 1d) and sparrow hawk it is organized in a layer of uniform thickness throughout the iris stroma characterized by six to eight rows of cells, below the corneal endothelium. In buzzard these smooth cells are organized in fewer cell rows (from two to three).

Full browser ?