PURPOSE: To analyze complications of femtosecond lasers used for cataract surgery. SETTING: Department of Ophthalmology Semmelweis University, Budapest, Hungary. DESIGN: Retrospective analysis. METHODS: Intraoperative complications of the first 100 femtosecond laser-assisted (Alcon-Lensx, Inc.) cataract surgeries were collected. Possible complications of femtosecond capsulotomies and their management were also assessed. RESULTS: The complications were as follows: suction break (2%), conjunctival redness or hemorrhage (34%), capsule tags and bridges (20%), anterior tear (4%), miosis (32%), and endothelial damage due to cut within the endothelial layer (3%). There were no cases of capsule blockage or posterior capsule tear. During the learnin...