Superficial Keratectomy

	Superficial Keratectomy Superficial keratectomy (SK), also known as "Super K" or "corneal epithelial debridement", is an ophthalmic surgical procedure takes place on the surface of the cornea to remove irregularities or scars. SK involves removing the epithelial layer of the cornea leaving the bowman's membrane undisturbed. Often, the bowman's layer is polished and smoothed with a diamond tip burr or laser which encourages anchoring of the new epithelium as it grows back. Many doctors will use the antibiotic Mitomycin or an amniotic membrane transplant to improve surgical outcomes. Common conditions that require SK * Epithelial Basement Membrane Dystrophy * Recurrent Corneal Erosion Syndrome * Salzmann’s Nodular degeneration (corneal superficial nodules) * Superficial corneal scar * Removal of Band Keratopathy Band keratopathy is a corneal disease derived from the appearance of calcium on the central cornea. This is an example of metastatic calcification, which by definition, occurs in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Bowman's Layer The Bowman's layer (Bowman's membrane, anterior limiting lamina, anterior elastic lamina) is a smooth, acellular, nonregenerating layer, located between the superficial epithelium and the stroma in the cornea of the eye. It is composed of strong, randomly oriented collagen fibrils in which the smooth anterior surface faces the epithelial basement membrane and the posterior surface merges with the collagen lamellae of the corneal stroma proper. In adult humans, Bowman's layer is 8-12 μm thick. With ageing, this layer becomes thinner. The function of the Bowman's layer remains unclear and it appears to have no critical function in corneal physiology. Recently, it is postulated that the layer may act as a physical barrier to protect the subepithelial nerve plexus and thereby hastens epithelial innervation and sensory recovery. Moreover, it may also serve as a barrier that prevents direct traumatic contact with the corneal stroma and hence it is highly involved in stromal wound he ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Epithelial Basement Membrane Dystrophy Epithelial basement membrane dystrophy (EBMD) is a disorder of the eye that can cause pain and dryness. EBMD, also known as map-dot-fingerprint dystrophy and Cogan microcystic epithelial dystrophy, is a corneal epithelial disease that may result in recurrent corneal erosions, irregular corneal astigmatism, and decreased vision. It is sometimes included in the group of corneal dystrophies. It diverges from the formal definition of corneal dystrophy since it is non-familial in most cases. It also has a fluctuating course, while for a typical corneal dystrophy the course is progressive. When it is considered part of this group, it is the most common type of corneal dystrophy. Signs and symptoms Patients may complain of severe problems with dry eyes, or with visual obscurations. It can also be asymptomatic, and only discovered because of subtle lines and marks seen during an eye exam. EBMD is a bilateral anterior corneal dystrophy characterized by grayish epithelial fingerprint ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Recurrent Corneal Erosion Syndrome Recurrence and recurrent may refer to: Disease recurrence, also called "relapse" Eternal recurrence, the concept that the universe is perpetually recurring Historic recurrence, the repetition of similar events in history Poincaré recurrence theorem, Henri Poincaré's theorem on dynamical systems Radial recurrent artery, arising from the radial artery immediately below the elbow Recursive definition Recurrent neural network, a special artificial neural network Recurrence period density entropy, an information-theoretic method for summarising the recurrence properties of dynamical systems Recurrence plot, a statistical plot that shows a pattern that re-occurs Recurrence relation, an equation which defines a sequence recursively Recurrent rotation, a term used in contemporary hit radio for frequently aired songs ''Recurrence'', The Railway Children (band) album See also * Feedback (other) Mathematical induction Recursion Recursion occurs when the definit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Band Keratopathy Band keratopathy is a corneal disease derived from the appearance of calcium on the central cornea. This is an example of metastatic calcification, which by definition, occurs in the presence of hypercalcemia. Signs and symptoms Signs and symptoms of band keratopathy include eye pain and decreased visual acuity. Causes Band keratopathy has several causes. These causes include uveitis, interstitial keratitis, superficial keratitis, phthisis, sarcoidosis, trauma, intraocular silicone oil, systemic diseases ( high levels of calcium in the blood, vitamin D intoxication, Fanconi's Syndrome, low levels of phosphorus in the blood, gout, milk-alkali syndrome, myotonic dystrophy, and chronic mercury exposure). Pathology Band keratopathy is seen when there is calcification of the epithelial basement membrane, Bowman's layer, and the anterior stroma with destruction of Bowman's layer. The calcium salts are intracellular when the process is due to alteration of systemic calcium ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]