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Definition

keratoplasty

(ker'ăt-ō-plastē )

[kerato- + -plasty]

Corneal grafting. The replacement of a cloudy cornea with a transparent one, typically derived from an organ donor.

SEE: corneal contact lens.

conductive k.Keratoplasty performed with the use of radio frequency energy (350 Hz) to operate on the cornea and correct hyperopia or presbyopia.

deep lamellar endothelial k.

ABBR: DLEK

Keratoplasty of the two innermost layers of the cornea, Descemet membrane and the corneal endothelium, leaving the outer cornea layers intact.

Descemet stripping automated endothelial k.

ABBR: DSAEK

Keratoplasty just anterior to the corneal endothelium with donor tissue after the Descemet membrane has been removed from the recipient's eye. It is used to treat corneal diseases such as Fuchs corneal dystrophy which impact only the innermost layers of the cornea.

endothelial k.The transplantation of the endothelial layer of the cornea into a recipient patient’s eye; a treatment for corneal blindness.

lamellark.Keratoplasty with donated corneal tissue into the middle layers of the cornea, leaving the corneal endothelium and inner layers of the cornea intact.

optic k.The removal of a corneal scar and replacement with corneal tissue.

refractive k.Refractive surgery.

tectonic k.Use of corneal tissue to replace that lost because of trauma or disease.

therapeutic penetrating k.A treatment for corneal ulceration with perforation or keratitis that has not responded to aggressive medical treatment in which a donated cornea is transplanted into the patient's diseased cornea after the cornea has been completely removed from the eye, the anterior chamber is cleansed, and the lens removed.