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Early flap displacement after LASIK: how is the real final outcome of these eyes?

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Session Details

Session Title: Moderated Poster Session: Refractive

Session Date/Time: Saturday 05/09/2015 | 14:00-15:00

Paper Time: 14:10

Venue: Poster Village: Pod 1

First Author: : R.Cobo-Soriano SPAIN

Co Author(s): :    F. Llovet   F. Gonzalez-Lopez   R. Bilbao   J. Beltran     

Abstract Details


RATIONALE STATEMENT: Flap displacement has traditionally been catalogued as a benign postoperative complication of LASIK. However, an eye with a corneal flap that has remained wrinkled for several hours in the postoperative period, usually has a late restoration of visual performance compared with eyes with a perfect postoperative healing and fitting between both, flap and stromal surfaces. Purpose:

To evaluate in a large sample of cases, the refractive and visual outcomes of eyes that suffered from an early postoperative flap dislocation.


Clinica Baviera Group, Madrid, Spain.


.Retrospective and comparative study analyzing the refractive and visual outcomes of a large sample of eyes (n= 459) that suffered a postoperative early flap dislocation (within 48h after LASIK procedure) at our Institution (24h-emergency Service), and comparing them with a control normal postoperative LASIK group. Postoperative final visual data ((mean UDVA, mean DCVA, efficacy and safety parameters), and postoperative final refractive data (spherical equivalent, percentage of eyes within ±0.5D and rate of enhancement)) were analyzed and compared between both groups.


Time between flap dislocation and surgical reposition was: same day (n=149, 32.5%), first day (n= 278, 60.5%), and second day (n=32, 7%). Main outcome measures were the following: In the dislodged-flap group, efficacy (postoperative UDVA minus preoperative DCVA) was 61%, safety (loss of ≥2 lines between postoperative and preoperative DCVA,) was 4.7%, predictability (% eyes ±0.5D) was 75%, and enhancement rate 12%. In the control group, efficacy was 75%, safety 1.5%, predictability 86.2% and percentage of enhancement 6.7%. Comparison between both groups showed statistically significant differences in all these parameters. We also describe anatomical complications of some specific significant cases.


A flap dislocation after a LASIK procedure changes the final prognosis and worsens the visual performance, predictability and the rate of enhancement despite a prompt surgical reposition.

Financial Interest:


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