traumatic corneal flap dislocation four years after lasik

purpose: to report occurrence, management, and outcome of late-onset traumatic dislocation of laser in situ keratomileusis (lasik) flaps case report: we report a patient with late-onset lasik corneal flap dislocation after blunt ocular trauma occurring four years after surgery. an ultrasound biomicroscopy (ubm) was performed to view the status of flap and determination of flap thickness. results: repositioning of the flap was performed in the operation room. during repositioning, the surface of the bed was debrided and deepithelialized, then the dislocated flap was floated into position with the aid of an iris spatula. a bandage contact lens was placed and topical antibiotic and corticosteroids were given postoperatively. the dislocated corneal flaps were successfully repositioned. after 3 months, the uncorrected visual acuity (ucva) was 20/30 and the best corrected visual acuity (bcva) was 20/25 with a refraction of +0.25-0.5×10. conclusion: lasik corneal flaps are vulnerable to traumatic dehiscence and dislocation. ubm is a useful and easy to perform technique and show the anatomical status of the flaps.    iranian journal of ophthalmology 200921(2):58-61 © 2009 by the iranian society of ophthalmology