Posters

Method of intraoperative graft thickness control with optical coherence tomography during ultrathin corneal flap creation for DSAEK

Poster Details

First Author: A.Shilovskikh RUSSIA

Co Author(s):    A. Ulyanov   O. Shilovskikh                 

Abstract Details

Purpose:

To present a method of donor cornea thickness control with OCT during ultrathin graft creation using subsequent cuts with MORIA microkeratome and to estimate its efficacy.

Setting:

IRTC "Eye Microsurgery" Ekaterinburg Center

Methods:

In order to have a possibility to control the thickness of donor corneal tissue at any moment of operation we have developed an attached holder for Visante optical coherence tomograph and a cassette holder for artificial anterior chamber which is autoclavable.

Results:

We have created 12 ultrathin grafts using this method. Minimal thickness of the ultrathin flap with the consideration of hydration edema was 70 microns. No perforations were marked.

Conclusions:

The suggested method gives a possibility to measure the thickness of donor material at any moment of operation; to estimate  graft condition for presence of scars or opacities; to find accurately the “thin point”, thus reducing the risk of material loss; to provide central positioning of the material in the artificial anterior chamber and to reduce significantly final graft thickness up to 70 microns.

Financial Disclosure:

None