title: Incidence of intraoperative corneal abrasions and correlation with age using the Hansatome and Amadeus microkeratomes during laser in situ keratomileusis.
abstract: To compare the incidence of intraoperative corneal abrasions using the Hansatome (Bausch & Lomb Surgical) and Amadeus (Advanced Medical Optics) microkeratomes and to determine whether there is a correlation between patient age and the occurrence of intraoperative corneal abrasions. Outpatient ambulatory laser vision correction center. The charts of 133 patients (263 eyes) having laser in situ keratomileusis (LASIK) were reviewed retrospectively. The patients were randomized to LASIK performed by 2 surgeons using the same technique with alternative microkeratome selection. The incidence of intraoperative corneal abrasions was significantly higher with the Hansatome microkeratome than with the Amadeus microkeratome (P =.014). There was a significant correlation between increasing patient age and the incidence of corneal abrasions with both microkeratomes (P<.05). Laser in situ keratomileusis surgeons should be aware that certain microkeratome designs pose a higher risk for intraoperative corneal abrasions and that older patients are more susceptible to intraoperative corneal epithelial injury. These patients should be informed accordingly for appropriate consent.
authors.affiliation: Refractive Surgery Service, The Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland 21093, USA. nsjabbur@jhmi.edu
authors.forename: Nada S
authors.initials: NS
authors.lastname: Jabbur
authors.forename: Terrence P
authors.initials: TP
authors.lastname: O'Brien
mesh_terms: D000328:Adult; D000368:Aged; D000375:Aging / Q000502:physiology*; D003316:Corneal Diseases / Q000209:etiology*; D065306:Corneal Injuries; D004867:Equipment Design; D005131:Eye Injuries / Q000209:etiology*; D005260:Female; D006801:Humans; D015994:Incidence; D007431:Intraoperative Complications; D020731:Keratomileusis, Laser In Situ / Q000009:adverse effects* / Q000295:instrumentation; D008297:Male; D008875:Middle Aged; D009885:Ophthalmology / Q000295:instrumentation; D012189:Retrospective Studies; D013524:Surgical Flaps