One-Year Results of Arcuate Keratotomy in Patients With Low to Moderate Corneal Astigmatism Using a Low-Pulse-Energy Femtosecond Laser

PurposeTo investigate corneal astigmatism (CA) reduction and optical quality after surface-penetrating femtosecond laser arcuate keratotomies (Femto AK) considering anterior (CAant) posterior curvature (CApost), total refractive power (CAtot), higher-order aberrations (HOAs) through 1 year.DesignProspective interventional case series.MethodsSetting: Department of Ophthalmology, Medical University Vienna. Patient Population: Forty-three eyes 43 patients with age-related cataract CAtot between 3 diopters (D). Intervention: Paired were created a low-energy (LDV Z8; Ziemer Ophthalmic Systems, Port, Switzerland) combined an astigmatic neutral manual posterior-limbal incision. CA HOAs measurements obtained preoperatively month, months, year. Main Outcome Measure: Change Femto AK year.ResultsMean preoperative CAant (1.62 ± 0.49 D 1.58 0.44 D) significantly reduced, to 0.66 0.38 0.50 0.30 (P < .001) year surgery, respectively. CApost showed no significant change, from 0.31 0.19 0.13 = .732) at the 1-year follow-up period. Astigmatism as calculated by vector analysis stayed stable Corneal wavefront improved year.ConclusionsPaired efficient within surgery. The cornea was preserved lower than preoperatively. To Prospective series. Setting: Mean