title: Keratectasia following LASIK in a patient with uncomplicated PRK in the fellow eye.
abstract: We present a case of unilateral keratectasia in a laser refractive surgery patient. Laser in situ keratomileusis (LASIK) was performed in the first eye, but because of difficulty lifting the femtosecond-created cap in the second eye, photorefractive keratectomy was performed in that eye. Neither eye had risk factors for keratectasia; both had identical low scores on the Randleman risk factor score. Although femtosecond laser caps were created in both eyes, ectasia developed in only the LASIK eye, in which the cap was lifted. We believe this is the first case of this complication reported in the literature. It highlights our incomplete knowledge of the risk factors for keratectasia following LASIK and suggests that unlifted flaps do not undergo the same biomechanical weakening as flaps that are lifted.
authors.affiliation: Vision Eye Institute Chatswood, Level 3 270 Victoria Avenue, Chatswood, NSW, Australia. christopher.hodge@vgaustralia.com
authors.forename: Chris
authors.initials: C
authors.lastname: Hodge
authors.forename: Michael
authors.initials: M
authors.lastname: Lawless
authors.forename: Gerard
authors.initials: G
authors.lastname: Sutton
mesh_terms: D000328:Adult; D003316:Corneal Diseases / Q000209:etiology*; D003319:Corneal Stroma / Q000601:surgery; D019781:Corneal Topography; D004108:Dilatation, Pathologic / Q000209:etiology; D007839:Functional Laterality; D006801:Humans; D020731:Keratomileusis, Laser In Situ / Q000009:adverse effects*; D054018:Lasers, Excimer; D008297:Male; D009216:Myopia / Q000601:surgery*; D018903:Photorefractive Keratectomy; D012029:Refraction, Ocular / Q000502:physiology; D013524:Surgical Flaps; D014792:Visual Acuity / Q000502:physiology