Comparison of two surgical procedures for preventing Descemet's membrane (DM) rupture in deep anterior lamellar keratoplasty (DALK)

Session Details

Session Title: Cornea
Session Date/Time: Friday 10/02/2017 | 08:30-10:00
Paper Time: 08:48
Venue: Brussels Room 0.4

First Author: Y. Koçluk TURKEY
Co Author(s): E. Alyamac Sukgen                 

Abstract Details

Purpose:

The effect of viscoelastic device (VED) on descemet membrane (DM) rupture for two different surgical procedures in ﾑdouble bubbleﾒ Deep anterior lamellar keratoplasty (DALK) surgery was investigated in the study.

Setting:

This retrospective clinical study was performed in an ophthalmology clinic of a tertiary care center after the approval of hospital ethics committee and all patientsﾒ written informed consent were obtained.

Methods:

The medical records and videos of surgeries of 40 patients operated between January 2014 and July 2015 were evaluated. The patients were divided into two groups. 20 cases whose perforation of posterior stromal wall was performed without putting any VED were group 1; and other 20 cases after these first patients whose perforation of posterior stromal wall was performed with putting VED onto the posterior stroma were group 2.

Results:

The perforation of the DM was observed in 12 (60.0%) of group 1 cases and was only observed in 3 (15.0%) of group 2 cases. This difference was statistically significant (p=0.003). Only 1 (5 %) case had macroperforation during the DALK surgery in group 2 and it was converted to penetrating keratoplasty (PKP) in this case. 11 (55.0%) cases in group 1 had macroperforation of DM and were converted to PKP in these patients. This difference between the groups was statistically significant (p=0.001).

Conclusions:

Placing VED just before puncture, onto posterior stromal side or big bubble is an effective method for decreasing DM perforation risk during posterior stroma puncture in DALK surgery.

Financial Disclosure:

None