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keratoplasty
(redirected from lamellar keratoplasty)

   Also found in: Dictionary/thesaurus, Encyclopedia 0.01 sec.
keratoplasty /ker·a·to·plas·ty/ (ker´ah-to-plas″te) plastic surgery of the cornea; corneal transplantation.
optic keratoplasty  transplantation of corneal material to replace scar tissue which interferes with vision.
refractive keratoplasty  removal of a section of cornea from a patient or donor, which is shaped to the desired curvature and inserted either between (keratophakia) layers of or on (keratomileusis) the patient's cornea to change its curvature and correct optical errors.
tectonic keratoplasty  transplantation of corneal material to replace tissue which has been lost.

ker·a·to·plas·ty (kr-t-plst)
n.
Surgical replacement of an opaque portion of the cornea with a piece of cornea having the same size and shape. Also called corneal graft.

keratoplasty.
keratoplasty [ker´ah-to-plas″te]
optic keratoplasty transplantation of corneal material to replace scar tissue that interferes with vision.
refractive keratoplasty removal of a section of cornea from a patient or donor, which is shaped to the desired curvature and inserted either between layers of the recipient's cornea (keratophakia) or over the cornea (keratomileusis) in order to change the corneal curvature and correct optical errors.
tectonic keratoplasty transplantation of corneal material to replace tissue that has been lost.

keratoplasty,
n corneal transplantation.

keratoplasty
plastic surgery of the cornea; corneal grafting.

lamellar keratoplasty
a partial thickness graft of the cornea; only epithelium and superficial stroma is removed and replaced by donor tissue as distinct from penetrating or full-thickness grafting.
optic keratoplasty
transplantation of corneal material to replace scar tissue that interferes with vision.
penetrating keratoplasty
a full thickness of the cornea is removed and replaced with donor tissue.
tectonic keratoplasty
transplantation of corneal material to replace tissue that has been lost.

keratoplasty
Excision of corneal tissue and its replacement by a cornea from a human donor. This can be done either over the entire cornea (total keratoplasty) or over a portion of it (partial keratoplasty). Two main techniques are used: (1) the penetrating keratoplasty in which the entire thickness of the cornea is removed and replaced by transparent corneal tissue; (2) the lamellar keratoplasty in which a superficial layer is removed and replaced by healthy tissue. Common indications to perform keratoplasty are therapeutic (e.g. keratoconus, corneal ulcer) or cosmetic (e.g. removing an unsightly opacity). Syn. corneal transplant. See ciclosporin; granular dystrophy; eye bank; corneal graft; immunosuppressants.

keratoplasty
 Corneal transplant, see there

Patient discussion about keratoplasty.

Q. Has anyone had experience with a corneal transplant because of keratoconus?

A. my uncle had to do a transplant- it took 5 weeks until he could see anything , another year to get his vision straightened up. but now he is fine! i know that he looked for information in the "National Keratoconus Foundation". they were very helpful (and nice!), they have a website with information on all forms of treatment:
http://www.nkcf.org/

good luck :)

Read more or ask a question about keratoplasty


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After a review of the general anatomy of the cornea and a historical perspective, sections cover anterior and posterior surgical techniques for lamellar keratoplasty, transitions from optical to tectonic and therapeutic lamellar keratoplasty, lamellar keratoplasty for infants and children, lamellar keratoplasty techniques that may help patients with refractive surgery-related complications, the amniotic membrane in lamellar keratoplasty, and lamellar keratoplasty in artificial cornea.
Radial Keratotomy (RK), Astigmatic Keratotomy (AK), and Automated Lamellar Keratoplasty (ALK), are commonly performed procedures selected by people who want to be less dependent on glasses or contact lenses for the correction or improvement of myopia (nearsightedness), hyperopia (farsightedness), and astigmatism.
For the more cautious patient, other doctors offer a similar, but already FDA-approved, procedure called Automated Lamellar Keratoplasty (ALK), which is the forerunner to LASIK.
 
 
 
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