Software for management of repeated suction loss during femtosecond-assisted laser in situ keratomileusis

Abstract

A 24-year-old woman presented seeking correction of a refractive error of −5.00 diopters (D) sphere and −4.25 D sphere in the right eye and left eye, respectively. Anterior segment evaluation was unremarkable, with normal corneal tomography and a thinnest pachymetry of 579 μm and 577 μm in the right eye and left eye, respectively. Femtosecond-assisted laser in situ keratomileusis was planned. Repeated suction loss occurred during the femtosecond laser delivery in the left eye, the first during the flap cut and the second during the side cut. The subsequent lack of a retreatment license prevented further advancement and completion of the side cut only. The side cut was completed using Circle software (pattern A), which allowed a successful flap lift and subsequent excimer laser ablation. A well-centered flap was noted on the postoperative visit with an uncorrected distance visual acuity of 20/16.