Session Title: Cornea
Session Date/Time: Sunday 05/02/2012 | 08:30-11:00
Paper Time: 10:09
Venue: Hall 1
First Author: : O.Findl AUSTRIA
Co Author(s): : N. Hirnschall S. Tatzreiter
Purpose:
Aim of this study was to assess the clinical applicability and feasibility of continuous intra-operative optical coherence tomography (CI-OCT) scanning using a microscope-integrated OCT-setup for both Descemet stripping automated endothelial keratoplasty (DSAEK) and deep anterior lamellar keratoplasty (DALK).
Setting:
Teaching Hospital
Methods:
This study included 10 eyes of 10 patients with Fuchs endothelial dystrophy, bullous keratopathy, keratoconus and deep stromal scars scheduled for corneal lamellar surgery. An operating microscope with a microscope-integrated anterior segment OCT device (Visante attached to OPMI VISU 200, Carl Zeiss Meditec AG, Germany) was used to guide treatment. RESULTS For DSAEK, CI-OCT was useful for visualising the process of stripping Descemet and verifying complete removal. Also, after inserting the donor tissue, both the centration relative to the chamber angle as well as the detection of a fluid interface and the need for venting incisions proved useful. For DALK, guidance of the depth of the needle tip to create the big bubble was difficult due to artefacts induced by the steel. However, visualisation of the big bubble was possible even in cases where the anterior cornea was completely opaque due to the air injection. Examples for both procedures will be shown.
Conclusions:
CI-OCT allows qualitative morphological as well as quantitative biometric assessment of the anterior segment during surgery. This new surgical tool has great potential to guide treatment and enhance outcomes with lamellar corneal surgery.
Financial Disclosure:
No
