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Update on Descemet membrane endothelial keratoplasty

Godinho, Joao V.; Mian, Shahzad I.

Current Opinion in Ophthalmology: July 2019 - Volume 30 - Issue 4 - p 271–274
doi: 10.1097/ICU.0000000000000577
CORNEAL AND EXTERNAL DISORDERS: Edited by Shahzad I. Mian
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Purpose of review To provide an update on new perspectives on Descemet membrane endothelial keratoplasty (DMEK).

Recent findings Preloaded DMEK grafts allow optimization of DMEK surgery time and reduce costs of the procedure, which is allowing the procedure to become more easily performed as reflected in the increasing number of cases. The surgical technique in the United States differs from the technique in Europe, but outcomes have been similar. Hemi-DMEK and quarter-DMEK have shown similar outcomes to conventional DMEK with respect to corneal transparency and visual acuity. Three-year follow-up of hemi-DMEK has also shown stability in endothelial cell count while maintaining corneal transparency.

Summary DMEK is becoming more accepted as the procedure of choice for treating endothelial failure. However, challenges with the surgical technique have limited wider implementation of this lamellar corneal transplantation. Preloaded DMEK provides one solution for the surgical challenges associated with the procedure while also reducing costs. Variations in the surgical technique for DMEK, including hemi-DMEK and quarter-DMEK, allow for central corneal clarity similar to traditional DMEK, but both result in lower endothelial cell density (ECD).

Department of Ophthalmology and Visual Sciences, W. K. Kellogg Eye Center, University of Michigan, Ann Arbor, Michigan, USA

Correspondence to Shahzad I. Mian, MD, W. K. Kellogg Eye Center, 1000 Wall Street, Ann Arbor, MI 48105, USA. E-mail: smian@med.umich.edu

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