Comparison of the Flap Complication Rate Between Microkeratomes for LASIK

ABSTRACT

PURPOSE: To compare intraoperative and postoperative flap complication rate between the Hansatome Excellus and Zyoptix XP microkeratomes for LASIK surgery. METHODS: The intra- and post-operative flap complication rate, in 323 eyes of 167 patients operated on using the Hansatome microkeratome were compared with 260 eyes of 132 patients that were operated on using the Zyoptix XP microkeratome. RESULTS: The Hansatome group showed an intraoperative complication incidence of 2.7% compared to 0.4% for the Zyoptix XP group (p0.05). There was no incidence of visually significant complications in either group. CONCLUSIONS: The Zyoptix XP showed a significantly decreased intraoperative flap complication rate compared to the Hansatome Excellus microkeratome. The preoperative K value is an important factor for safe LASIK.