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    By Ritu Arora, MD, MBBS; Aditi Abhay Manudhane, MBBS; Jawahar Lal Goyal, MD, et al.
    AAO 2014
    Cornea/External Disease

    This video demonstrates the use of crescentic tuck in lamellar keratoplasty, which combines crescent lamellar dissection with a peripheral tuck, to treat a 58-year-old male with advanced pellucid marginal corneal degeneration. He had a preoperative astigmatism of 14.7 D and pachymetry at the inferior thinnest point was 280 µm. Twelve weeks postop, uncorrected and best-corrected visual acuities were 20/120 and 20/30, respectively, and astigmatism was reduced to 4 D.