Posters

Management of post-LASIK ectasia

Poster Details

First Author: M.Bohač CROATIA

Co Author(s):    M. Jagic   A. Biscevic   N. Gabric   S. Patel           

Abstract Details

Purpose:

To report the clinical outcomes following treatment of post laser in situ keratomileusis (LASIK) induced ectasia.

Setting:

Specialty Eye Hospital Svjetlost, School of Medicine University of Rijeka, Zagreb, Croatia

Methods:

This is retrospective case series of 7 patients(10 eyes), which developed post LASIK ectasia. In these cases of postoperative ectasia the presented clinical signs were either, forme fruste keratoconus, thin cornea, posterior elevation map value > +15.0µm or residual stromal bed < 300µm. In all cases, the flap was created using the Moria M2 mechanical microkeratome(average flap thickness 118.15±12.88µm) and refractive error corrected using the Wavelight Allegretto excimer laser. All cases were treated with either collagen crosslinking(CXL) alone or CXL combined with PRK or CXL and phakic intraocular implant using the Dresden protocol and a slight modification thereof.

Results:

Average preoperative corrected visual acuity (CDVA) was 0.75 (±0.26) Snellen. Postoperative CDVA significantly increased to 0.86 (±0.13) Snellen (p=0.04, paired t-test). One eye lost three lines of its baseline CDVA (before ectasia) while all other eyes regained lines of CDVA. All cases remained stable during the follow up.

Conclusions:

Several surgical procedures are used for the management of corneal ectasia. However, the best surgical approach should be determined based on the state of progression of the disease. Although ectasia remains a potentially devastating complication after refractive surgery, most patients can regain functional visual acuity with appropriate management and corneal transplantation is infrequently indicated.

Financial Disclosure:

None