DMEK surgery with glasses-assisted three-dimensional (3D) display system (Ngenuity®): feasibility and comparison with standard procedure assisted by a microscope

Session Details

Session Title: Presented Poster Session: Surgical Cornea

Venue: Poster Village: Pod 2

First Author: : C.Epanthier FRANCE

Co Author(s): :                           

Abstract Details

Purpose:

to assess the feasibility of a DMEK surgery using the glasses-assisted three-dimensional (3D) display system NGENUITY® (Alcon) and to compare with standard procedure using a direct microscope.

Setting:

Prospective single center study

Methods:

6 consecutive cases of DMEK procedure were performed using the glasses-assisted three-dimensional display system NGENUITY® (Alcon) in a prospective analysis and paired with similar cases performed with the OPMI-Lumera 700 surgical microscope (Carl Zeiss Meditec). Time to prepare the DMEK graft, time to unroll it time to perform the descemetorexhis (DM) and global time procedure were recorded. Best-corrected visual acuity (BCVA), endothelial cell density (ECD) of the donor tissue measured by specular microscopy, and the recipient's central corneal thickness (CCT) were recorded pre-operatively and again at 1 and 3 months after surgery.

Results:

In the 3D group, time to perform the graft preparation was significantly higher than conventional group (17min36sec ±3min13sec and 14min50sec ±1min28 sec respectively p=0.04). Time to perform the DM, to unfold the graft and global surgical time were higher but not significantly in the 3D group than conventional group (6min18sec ±2min30sec vs 3min50sec ±2min8sec (P=0.09) for DM, 5min15sec ±2min40sec vs 4min40sec ±2min25sec (P=0.89) for unfolding and 31min 30sec ±6min10sec vs 24min10sec ±3min26sec for global surgical time (P=0.07)). CCT, BCSVA and EDC were similar in the two groups at three post operative months (P>0.05).

Conclusions:

Performing DMEK with 3D display system is doable but it is more challenging and takes more surgical time. It is undoubtedly a way forward for instructional courses.

Financial Disclosure:

None