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Femtosecond laser arcuate keratotomies for astigmatism correction during cataract surgery with LensX laser system

Poster Details

First Author: L.Toto ITALY

Co Author(s):    L. Vecchiarino   P. Mattei   A. Mastropasqua   M. Papa   G. Falconio   L. Mastropasqua

Abstract Details


To describe the results of arcuate keratotomies (AKs) performed with LensX femtosecond laser system in patients who are candidates for cataract surgery and astigmatism correction.


Ophthalmic Clinic; Department of Medicine and Ageing Science, University “G. d’Annunzio” of Chieti-Pescara, Italy


Twenty eyes of 20 patients with cataract and corneal astigmatism were included. The LensX femtosecond laser system was used to perform AKs on the steep axis. The incision depth was programmed at 90% of the corresponding local corneal thickness as measured by optical coherence tomography (OCT) and all AK were performed after capsulotomy and lens fragmentation, and before clear corneal incisions. Changes in uncorrected visual acuity (UCVA), distance corrected visual acuity (DCVA) and mean topographic astigmatism were assessed preoperatively and postoperatively over 6 months. In addition, depth of incisions by anterior segment OCT (AS) was measured postoperatively.


Mean UCVA and CDVA improved from preoperative values of 0.90±0.13 and 0.62±0.15 to 180-day values of 0.05±0.06 and -0.05±0.06, respectively (p≤.01). Mean topographic astigmatism was 2.53±1.87 diopters (D) preoperatively and 0.37±0.21 D at 30 days after surgery (p≤.01) and remained stable to the end of follow-up. AS-OCT showed that the depth and location of the incisions were consistent with preoperative surgical plan.


AKs performed with LensX femtosecond laser system during cataract surgery were safe and effective in reducing corneal astigmatism with related improvement of visual performance. Refractive and functional results were stable over time.

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