penetrating keratoplasty

(redirected from perforating keratoplasty)

pen·e·trat·ing ker·a·to·plas·ty

corneal transplant with replacement of all layers of the cornea, but retaining the peripheral cornea.


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.
References in periodicals archive ?
I already perform the INTRACOR procedure with the system, as well as use it to create flaps and for perforating keratoplasty. So the option to also perform the cataract steps with CUSTOMLENS module is a very exciting development." CUSTOMLENS will be commercially available in 2011.

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