Posters

Topography-guided (TG) LASIK vs SMILE: postoperative digitized centration evaluation (DCE) in contralateral eyes

Poster Details

First Author: V.Moustou GREECE

Co Author(s): A. Kanellopoulos                    

Abstract Details

Purpose:

To objectively define the effective centration of myopic LASIK ablation pattern and evaluate the difference between achieved versus planned laser ablation centration.

Setting:

LaserVision gr Clinical and Research Eye Institute, Athens, Greece

Methods:

In 21 consecutive patients, one randomized eye had TG LASIK and the contralateral: SMILE. Digital image analysis was performed on Scheimpflug sagittal curvature maps. Centration was assessed via proprietary software digital analysis of the coordinate displacement between the achieved ablation geometric center and the planned ablation center, which was the corneal vertex.

Results:

Radial displacement was calculated for LASIK group vs. SMILE on average: 458±265μm vs. 699±373μm. IHD: 0.0095± 0.0062 vs. 0.0106±0.0062 preoperatively and 0.0142± 0.0113 vs. 0.0225±0.0099 postoperatively. OSI index was almost the same preoperatively, while postoperatively OSI: 1.40±1.39 vs. 1.14±0.82.

Conclusions:

Results presented showed that during LASIK treatment, the ablation centration is more accurate than in case of SMILE.

Financial Disclosure:

None