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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. Keratoplasty simply ...
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.
PDEK is different from the whole cornea transplantation in which the transplantation of entire donor cornea to the recipient is done. [2] [3] Normal corneal thickness is about 520 to 540 microns in the centre and 600 to 620 microns in the periphery. [4] Pre descemet's layer which is dissected in PDEK, measures about 10.15±3.6 microns thick. [5]
Osteo-odonto-keratoprosthesis (OOKP), also known as "tooth in eye" surgery, [1] is a medical procedure to restore vision in the most severe cases of corneal and ocular surface patients. It includes removal of a tooth from the patient or a donor.
A corneal button is a replacement cornea to be transplanted in the place of a damaged, diseased or opacified cornea, normally approximately 8.5–9.0mm in diameter. [1] It is used in a corneal transplantation procedure (also corneal grafting) whereby the whole, or part, of a cornea is replaced. [2]
A Gundersen flap, also known as Gundersen's flap, Gundersen's conjunctival flap, or conjunctivoplasty, and often misspelled Gunderson, is a surgical procedure for correcting corneal disease. It involves excising a damaged section of cornea, and replacing it with a section (or "flap") of the patient's own conjunctiva .
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muscle hook or squint hook; sharp tip or knobbed tip; used in squint surgery Foreign body spud and needle: Spud to remove superficial and needle for the deep foreign bodies in the eye Elliot's trephine with handle: used in corneal donation (eye donation) to cut out the cornea in a circular fashion Castroveijo's calipers: various measurements ...