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The lumps appear to be randomly positioned on the cornea and they may appear and disappear over a period of time (with or without treatment). TSPK may affect one or both eyes. When both eyes are affected, the tiny lumps found on the cornea may differ in number between eyes. The severity of the symptoms often vary during the course of the ...
Keratomileusis, from Greek κέρας (kéras: horn) and σμίλευσις (smíleusis: carving), [1] or corneal reshaping, is the improvement of the refractive state of the cornea by surgically reshaping it. It is the most common form of refractive surgery.
Corneal abrasion Caused by a foreign body, dust, sand, or grit trapped under the lens. Corneal edema Caused by decreased oxygen delivery to the tissue compressed by the lens. Usually resolved after the removal of the lenses. Discomfort upon lens removal may be seen. Neovascularization New blood vessels may form in the iris region and the limbus.
Depending on the type of keratoprosthesis used, the surgery may involve a full thickness replacement of the cornea or the placement of an intralamellar implant. For the Alphacor a manual incision is used to create a corneal pocket and a punch is used to create an opening through the posterior cornea into the anterior chamber.
Corneal transplantation, also known as corneal grafting, is a surgical procedure where a damaged or diseased cornea is replaced by donated corneal tissue (the graft). When the entire cornea is replaced it is known as penetrating keratoplasty and when only part of the cornea is replaced it is known as lamellar keratoplasty .
Epikeratophakia [1] (also known as epikeratoplasty and onlay lamellar keratoplasty [2]) is a refractive surgical procedure in which a lamella of a donor cornea is transplanted onto the anterior surface of the patient's cornea. A lamellar disc from a donor cornea is placed over the de-epithelialized host cornea and sutured into a prepared groove ...
The small incision lenticule extraction (SMILE) procedure was first published in 2011 by Walter Sekundo et al. [7] [10] Various modifications of the procedure have since then been described which aim to reduce the duration of the procedure, reduce the risks of the lenticules being incorrectly cut or make the procedure easier to learn. [8]
Corneal cross-linking (CXL) with riboflavin (vitamin B 2) and UV-A light is a surgical treatment for corneal ectasia such as keratoconus, [2] PMD, and post-LASIK ectasia. It is used in an attempt to make the cornea stronger. According to a 2015 Cochrane review, there is insufficient evidence to determine if it is useful in keratoconus. [3]