Sub Bowman’s keratomileusis using an automated microkeratome: AS-OCT flap assessment at 1 week postop

Poster Details

First Author: S.Bharti INDIA

Co Author(s):                  

Abstract Details

Purpose:

To assess safety, efficacy and flap performance of One Use-Plus SBK microkeratome (Moria SA, France) to perform Sub Bowman’s Keratomileusis (SBK) for intended 100-micron planar flaps at Speed 2.

Setting:

Infiniti Eye Hospital, Mumbai, India

Methods:

First 40 eyes of 20 myopic astigmatic patients have been included for bilateral thin-flap LASIK surgery using One Use-Plus SBK microkeratome. 1 single-use SBK head has been used for 1 patient (2 eyes), and choice of metallic rings was based on K readings according to nomogram provided by the manufacturer. Central flap thickness has been assessed using anterior segment OCT (Spectral OCT SLO, Opko Healthcare Inc, USA) at a mean of Day 8 postoperative, as well at 3mm nasally and temporally from the corneal apex. Flap complications have been reported.

Results:

Mean central flap thickness was OD 96,00 +/- 7,54 microns ranging from 80 to 100 microns, and OS 96,50 +/- 8,13 microns ranging from 80 to 110 microns. Reproducibility between first cut (first eye) and second cut (second eye) was less than 2 microns on average. Flap thickness in the periphery was always less than 10 microns thicker than centrally, providing a very uniform flap profile commonly called " planarity" . Flap dimensions were always properly sized to allow consecutive excimer treatment: no laser treatment has been cancelled nor delayed, and no intraoperative flap complication has been experimented. No complaint of DLK nor postoperative flap complication has been reported in our initial series.

Conclusions:

Moria One Use-Plus SBK is a safe and accurate automated microkeratome for the creation of 100/110-micron planar flaps. It allows refractive surgeons to provide high level of safety surgeries for patients with a high flap performance and reliability. FINANCIAL DISCLOSURE?: No