DALK is a partial-thickness corneal transplant which involves only the donor stroma, leaving the recipient's own Descemet membrane and endothelium. The Penetrating Keratoplasty (PK) technique largely overshadowed Lamellar Keratoplasty (LK) because LK had poor visual outcomes related to irregularity of the dissected surfaces and scarring in the tissue interfaces. Recent improvements in surgical instruments and introduction of new techniques of maximum depth of corneal dissection as well as the reduced risk of immunological rejection compared to PK have renewed the interest of corneal surgeons. The procedure offers advantages over penetrating keratoplasty (PKP), including a “closed-system” operation and a decreased risk of postoperative immune rejection.
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| Dr. Hardik D Jivani (Patel)
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