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Ophthalmology and Visual Sciences

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Deep Anterior Lamellar Keratoplasty (DALK)

Contributor: Jesse Vislisel, MD

Photographer:  Brice Critser, CRA

Deep anterior lamellar keratoplasty (DALK) is a partial-thickness cornea transplant procedure that involves selective transplantation of the corneal stroma, leaving the native Descemet membrane and endothelium in place. Read the related article for more information regarding modern corneal transplantation techniques.

Figure 1: The post-operative appearance of a patient who underwent DALK for keratoconus.

post-operative appearance of a patient who underwent DALK for keratoconu

Figure 2: A clear DALK graft 3 years after the procedure with all sutures removed.

a clear DALK graft 3 years after the procedure with all sutures removed

Figure 3

Anterior segment optical coherence tomography demonstrating the redundant host Descemet membrane and endothelium in poor apposition to the graft tissue.

(A) Anterior segment optical coherence tomography demonstrating the redundant host Descemet membrane and endothelium in poor apposition to the graft tissue.

Normal anatomy is restored with reattachment of Descemet membrane to the donor stroma after placement of an air bubble in the anterior chamber.

(B) Normal anatomy is restored with reattachment of Descemet membrane to the donor stroma after placement of an air bubble in the anterior chamber.

 


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last updated: 03/16/2016