Objective,To report the occurrence,management and outcome of late-onset traumatic dehiscence and dislocation of laser assisted in situ keratomileusis(LASIK)flaps.Treatment and Results:One patient occurred late-onset LASIK corneal flap dislocation after ocular trauma 7days after surgery.The flap was lifted,stretched,and repositioned after irrigation and scraping of the stromal bed and the underside of the flap.A bandage contact lens was placed,and topical antibiotic and corticosteroids were given postoperatively.The dislocated corneal flap was successfully repositioned in the case.The dislocated flap was repositioned 7 days after the trauma,and the patient recovered his uncorrected visual acuity(UCVA)of 10/20,20/20 day 1 and day 20 after the procedure,of 20/20 20 days later and had a well-positioned flap with a clear interface.Diffuse lamellar keratitis developed in the patients that resolved with the use of topical corticosteroids.Conclusion:Laser in situ keratomileusis corneal flaps are vulnerable to traumatic dehiscence and dislocation,which should be pay more attention to it for us. Objective, To report the occurrence, management and outcome of late-onset traumatic dehiscence and dislocation of laser assisted in situ keratomileusis (LASIK) flaps. Treatment and Results: One patient occurred late-onset LASIK corneal flap dislocation after ocular trauma 7 days after surgery. The flap was lifted, stretched, and repositioned after irrigation and scraping of the stromal bed and the underside of the flap. A bandage contact lens was placed, and topical antibiotic and corticosteroids were given postoperatively. The dislocated corneal flap was successfully repositioned in the case The dislocated flap was repositioned for 7 days after the trauma, and the patient recovered his uncorrected visual acuity (UCVA) of 10/20/20, 20/20 day 1 and day 20 after the procedure, of 20/20 20 days later and had a well-positioned flap with a clear interface. Diffuse lamellar keratitis developed in the patients that resolved with the use of topical corticosteroids. Confc: Laser in situ keratomileusis corneal flaps a re vulnerable to traumatic dehiscence and dislocation, which should be pay more attention to it for us.