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Corneal epithelial wound healing.
Open accessAbstract
The corneal surface is, without question, the most specialised 123 mm2* of the body's surface.It forms an integral part of the ocular surface with which it shares several anatomical and physiological attributes.Like the rest ofthe body surface, it is in a state of constant 'healing'.Squamous epithelial cells are continually shed into the tear pool and simultaneously replenished by cells moving centrally from the limbus and anteriorly from the basal layers of the epithelium.This concept was propounded by Thoft' in his X, Y, Z hypothesis and is substantiated by several observations and experiments.X represents the proliferation of basal epithelial cells, Y is the proliferation and centripetal migration ofthe limbal cells, and Z the epithelial cell loss from the surface.For a state of equilibrium to be maintained X+Y must equal Z.It is estimated that the corneal epithelium is constantly renewed every 7 to 10 days.2When this equilibrium is disturbed, as occurs dramatically after an abrasion, the corneal epithelial wound healing response sets in.This is essentially an exaggeration of the normal physiological process involving cellular and sub- cellular events occurring under the influence of extracellular matrix proteins and growth factors.Applied anatomy and physiology of the ocular surface epithelium CORNEA
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Cited by
Effects of synthetic micro- and nano-structured surfaces on cell behavior
Flemming, R. G., Murphy, C. J., Abrams, G. A., Goodman, S. L., & Nealey, P. F. (1999) · Biomaterials · doi:10.1016/s0142-9612(98)00209-9 · Cited by 1,450
Limbal Stem Cells of the Corneal Epithelium
Dua, H. S., & Azuara-Blanco, A. (2000) · Survey of Ophthalmology · doi:10.1016/s0039-6257(00)00109-0 · Cited by 653
Self-citationAnatomy of the human corneal innervation
Marfurt, C. F., Cox, J., Deek, S., & Dvorscak, L. (2010) · Experimental Eye Research · doi:10.1016/j.exer.2009.12.010 · Cited by 498
Corneal epithelial stem cells at the limbus: looking at some old problems from a new angle
Lavker, R. M., Tseng, S. C. G., & Sun, T.-T. (2004) · Experimental Eye Research · doi:10.1016/j.exer.2003.09.008 · Cited by 339
Corneal nerves in health and disease
Al-Aqaba, M. A., Dhillon, V. K., Mohammed, I., Said, D. G., & Dua, H. S. (2019) · Progress in Retinal and Eye Research · doi:10.1016/j.preteyeres.2019.05.003 · Cited by 303
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Metadata
- Authors
- Dua, H. S., Gomes, J. A., & Singh, A.
- Venue
- British Journal of Ophthalmology
- Publisher
- BMJ
- Published
- 1994-05-01
- Volume
- 78
- Issue
- 5
- Pages
- 401-408
- ISSN
- 0007-1161 (ISSN-L)
- OpenAlex
- W2123900930
- Cited by
- 271
- References
- 0
- FWCI
- 3.34
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Dua, H. S., Gomes, J. A., & Singh, A. (1994). Corneal epithelial wound healing. British Journal of Ophthalmology. https://doi.org/10.1136/bjo.78.5.401
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