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Femtosecond-assisted arcuate incisions in astigmatism after keratoplasty

Poster Details

First Author: R.Garc SPAIN

Co Author(s):    J. Gim   R. Gim   J. Gallardo Galera        

Abstract Details


To evaluate the effect of arcuate keratotomies using femtosecond laser in patients with high postoperative keratoplasty astigmatism.


: Reina Sofia Hospital, CÃġrdoba


Nine eyes with previous keratoplasty and astigmatism higher than 4.5 diopters (D) were included. Paired incisions were performed at 70% depth of the corneal thickness using femtosencond laser (Technolas Perfect Vision ®, Heidelberg, Germany). Mean change in best spectacle-corrected visual acuity (BSCVA), mean keratometry, refractive and keratometric astigmatism was evaluated at one and three months after surgery. MedCalc 11.3. was used in the statistical analysis.


Mean preoperative BCVA was 0.36 Âḟ 0.1, increasing to 0.47 Âḟ 0.12 at one month and 0.5 Âḟ 0.2 at three months. The difference was not statistically significant (p > 0.05, p= 0.31 respectively). The mean refractive astigmatism decreased by 3 D at one month. Mean preoperative cylinder = -6.35 Âḟ 1.65 D. At one month = -3.47 Âḟ 2.36 D (p= 0.062). At three months = -3.37 Âḟ 1.58 D (p= 0.12). Topographic astigmatism significantly decreased by 4 D one month after surgery. Preoperative cylinder = -7.27 Âḟ 2.14 D. At one month = -3.26 Âḟ 1.98 D (p= 0.015). At three months = -3.78 Âḟ 2.58 D (p= 0.062). Mean keratometry remained stable. Baseline = 48.8 Âḟ 2.49 D. At one month = 48.39 Âḟ 1.39 D (p= 0.84). At three months = 48.48 Âḟ 2.46 D (p= 0.31).


In our patients affected by postkeratoplasty astigmatism, arcuate keratotomies aided by femtosencond laser reduced the astigmatism and produced a gain in visual acuity.

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