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Cole Eye Institute - Cleveland Clinic

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Cornea Surgery<br />

Corneal transplant surgeons at the <strong>Cole</strong> <strong>Eye</strong> <strong>Institute</strong> perform state-of-the-art transplants for<br />

numerous conditions that distort or cloud this normally transparent tissue. The traditional<br />

full-thickness procedure, known as penetrating keratoplasty (PK), makes up the bulk of<br />

grafts that are performed in our institution. From January 2006 through September 2007,<br />

137 PKs were performed, with 95.6 percent of these grafts remaining clear at three<br />

months.<br />

<strong>Cole</strong> <strong>Eye</strong> corneal transplant surgeons have also embarked on cutting-edge lamellar<br />

corneal transplant procedures in which only the portion of the cornea that is diseased is<br />

replaced. Using a procedure called descemet stripping automated endothelial keratoplasty<br />

(DSAEK), surgeons may now selectively transplant the endothelium for conditions such<br />

as pseudophakic bullous keratopathy and Fuchs endothelial dystrophy. Recipients of this<br />

procedure are provided faster visual recovery and more stable and predictable refractive<br />

outcomes than with traditional PK. During the above-mentioned period, 45 DSAEKs were<br />

performed, with 100 percent of the grafts remaining clear at three months.<br />

Corneal surgeons are also transplanting just the anterior portion of the cornea for conditions<br />

such as keratoconus and corneal scarring. This procedure, deep anterior lamellar<br />

keratoplasty (DALK), affords the advantage of allowing patients to retain their own healthy<br />

endothelium, avoiding the risk of endothelial rejection and other potential complications<br />

associated with PK. Over the past two years, 23 DALKs were performed, with 100 percent<br />

of the grafts remaining clear at three months.<br />

Yes<br />

No<br />

Graft Clear at 3 Months<br />

Percent Surgeries<br />

100<br />

80<br />

60<br />

40<br />

20<br />

0<br />

Anterior<br />

Lamellar<br />

Posterior<br />

Lamellar<br />

Type of Procedure<br />

Penetrating<br />

Keratoplasty<br />

9 <strong>Cole</strong> <strong>Eye</strong> <strong>Institute</strong>

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