Copenhagen 2016 Registration Programme Exhibitor Information Virtual Exhibition Satellite Meetings Glaucoma Day 2016 Hotel Star Alliance
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10 - 14 Sept. 2016, Bella Center, Copenhagen, Denmark

This Meeting has been awarded 27 CME credits

 

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Femtosecond laser-assisted anterior lamellar keratoplasty (FS-ALK) with consecutive excimer laser ablation below the graft: a case series

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Session Details

Session Title: Presented Poster Session: Femtosecond-Assisted Refractive Surgery

Session Date/Time: Saturday 10/09/2016 | 09:30-11:00

Paper Time: 10:30

Venue: Poster Village: Pod 2

First Author: : A.Gyldenkerne DENMARK

Co Author(s): :    A. Ivarsen   J. Hjortdal           

Abstract Details

Purpose:

To evaluate the outcome of FS-ALK with subsequent topography-guided excimer laser ablation below the graft for the treatment of anterior corneal scars.

Setting:

Department of Ophthalmology, Aarhus University Hospital, Denmark

Methods:

Retrospective evaluation of 5 eyes of 5 patients treated with FS-ALK and subsequent excimer ablation in the stromal bed for anterior corneal scarring. Evaluation included pre- and postsurgical Best Spectacle Corrected Visual Acuity (BSCVA), mean Spherical Equivalent (SE) and cylindrical refraction, Central Corneal Thickness (CCT), Higher Order Aberrations (HOA) including Spherical Aberration (SA) and Coma, and finally patients’ subjective experience of changes in vision. Measurements were recorded before FS-ALK, 3 and 8 months after FS-ALK, and 3 months after sub-graft laser ablation.

Results:

Mean logMAR BSCVA (mean±SD) before FS-ALK was 0.68±0.15, and 0.60±0.25 and 0.47±0.17 respectively 3 and 8 months after FS-ALK, and 0.40±0.25 3 months after sub-graft laser ablation. Mean SE before FS-ALK was 0.40±2.13D, and -1.35±5.74D 3 months after FS-ALK, and -1.18±2.95D 3 months after sub-graft laser ablation. Cylindrical refraction changed less than 1.0 D on average at any stage compared to before FS-ALK; pre-surgical mean CCT changed less than 40μm after FS-ALK or sub-graft laser ablation. SA and Coma were reduced after both FS-ALK and PRK. Patients described a subjective improvement concerning their vision, particularly a reduction of glare.

Conclusions:

FS-ALK and subsequent sub-graft laser ablation to treat anterior corneal scarring on average improved the BSCVA and HOAs; importantly, patients experienced a subjective improvement of vision, particularly a reduction of glare. In these 5 cases, FS-ALK and subsequent sub-graft laser ablation did not change average SE and astigmatism much compared to before intervention. Based on this case series, FS-ALK performed to reduce corneal opacity and subsequent sub-graft laser ablation to reduce astigmatism or ametropia may improve BSCVA, reduce HOAs and improve the patients’ subjective experience of their vision.

Financial Disclosure:

NONE

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