Cornea

Skip Navigation LinksHome > December 2013 - Volume 32 - Issue 12 > Bimanual Technique for Insertion and Positioning of Endothel...
Text sizing:
A
A
A
Cornea:
doi: 10.1097/ICO.0b013e3182933aee
Clinical Science

Bimanual Technique for Insertion and Positioning of Endothelium–Descemet Membrane Graft in Descemet Membrane Endothelial Keratoplasty

Güell, Jose L. MD, PhD*,†,‡; Morral, Merce MD, PhD†,§,¶; Gris, Oscar MD, PhD; Elies, Daniel MD; Manero, Felicidad MD

Collapse Box

Abstract

Purpose: To describe a new bimanual technique for insertion and positioning of endothelium–Descemet membrane (EDM) grafts in Descemet membrane endothelial keratoplasty (DMEK).

Methods: Prospective, noncomparative, consecutive interventional case series, including 15 pseudophakic eyes of 15 patients treated with DMEK at the Instituto de Microcirugia Ocular, Barcelona, Spain. A bimanual infusion technique was used to introduce and position donor's EDM. Partial tamponade was achieved with 20% sulfur hexafluoride (SF6). Intraocular manipulation time of EDM grafts, rebubbling rate, and endothelial cell density were evaluated.

Results: Six months postoperatively, mean uncorrected visual acuity and best spectacle–corrected visual acuity (BSCVA) improved from 20/100 to 20/50 and from 20/80 to 20/25, respectively (P < 0.001). Six eyes (40%) had ≥20/20 BSCVA, and 13 (86%) eyes had ≥20/30 BSCVA. Mean donor cell density decreased from 2690 ± 302 to 1998 ± 621 cells per square millimeter, representing a mean cell loss of 26% ± 20%. EDM was stripped successfully in all cases. Mean intraocular manipulation time of donor's EDM (interval between main incision closure and final EDM positioning) was 4.10 ± 0.5 minutes. Intracameral air reinjection was needed in 1 case (6.6%) with a partial peripheral graft detachment. No episodes of immunologic graft rejection were documented.

Conclusions: Insertion and positioning of EDM grafts in DMEK was successfully achieved using this bimanual infusion technique and 20% SF6 partial tamponade, with a low intraocular manipulation time and very low postoperative rebubbling rates, regardless of the preservation method and the donor's age. However, prospective comparative studies are required to demonstrate the long-term safety compared with other approaches.

© 2013 by Lippincott Williams & Wilkins.

Login

Article Tools

Share

Article Level Metrics

Search for Similar Articles
You may search for similar articles that contain these same keywords or you may modify the keyword list to augment your search.