title: [Evaluation of Postoperative Astigmatism Correction and Postoperative Rotational Stability of Two Toric Intraocular Lenses].
abstract: BackgroundThe aim of this retrospective study was to evaluate the rotational stability and the refractive outcome of two different toric IOLs.MethodsThis study included 41 eyes with corneal astigmatism greater than 1.5 diopters (D). All patients underwent surgery in the Department of Ophthalmology at Hietzing Hospital between 2010 and 2013. The study lenses were the Alcon AcrySof IQ Toric IOL and the Abbott Tecnis Toric Aspheric IOL. Measurements of corneal topography and aberrations were performed with the HOYA iTrace™. Determination of visual acuity was performed with ETDRS charts. Optical aberrations were represented by Zernike coefficients, and optical quality was assessed with the Strehl ratio.ResultsMean rotation was 4.92° (standard deviation: ± 4.10°) in the Alcon group and 4.31° (± 4.59°) in the Abbott group. No significant difference was observed between the two toric intraocular lenses. Rotational stability was comparable to results from other studies. Astigmatism correction was visualised with a power-vector analysis, which demonstrated similar results in both lenses and a clear success of astigmatism correction. No statistically significant differences were found in residual refractive astigmatism, which was 0.85 ± 0.48 D in the Alcon group and 1.09 ± 0.66 in the Tecnis group. No significant difference between the two groups was found in the Strehl ratio.ConclusionImplantation of toric intraocular lenses (Alcon + Abbott) in patients with regular astigmatism is an effective and safe method, which should be offered to patients. Both the Tecnis and the AcrySof toric IOLs similarly reduced ocular astigmatism.
authors.affiliation: Augenabteilung, Krankenhaus Hietzing mit Neurologischem Zentrum Rosenhügel, Wien, Österreich.
authors.forename: M
authors.initials: M
authors.lastname: Grohlich
authors.affiliation: Augenabteilung, Krankenhaus Hietzing mit Neurologischem Zentrum Rosenhügel, Wien, Österreich.
authors.forename: K
authors.initials: K
authors.lastname: Miháltz
authors.affiliation: Augenabteilung, Krankenhaus Hietzing mit Neurologischem Zentrum Rosenhügel, Wien, Österreich.
authors.forename: M
authors.initials: M
authors.lastname: Lasta
authors.affiliation: Augenabteilung, Krankenhaus Hietzing mit Neurologischem Zentrum Rosenhügel, Wien, Österreich.
authors.forename: B
authors.initials: B
authors.lastname: Weingessel
authors.affiliation: Augenabteilung, Krankenhaus Hietzing mit Neurologischem Zentrum Rosenhügel, Wien, Österreich.|Karl-Landsteiner-Institut für Prozessoptimierung und Qualitätsmanagement in der Katarakt-Chirurgie.
authors.forename: V
authors.initials: V
authors.lastname: Vécsei-Marlovits
mesh_terms: D000368:Aged; D001251:Astigmatism / Q000175:diagnosis* / Q000601:surgery*; D019544:Equipment Failure Analysis; D005260:Female; D006801:Humans; D019654:Lens Implantation, Intraocular / Q000295:instrumentation* / Q000379:methods*; D007910:Lenses, Intraocular; D008297:Male; D008875:Middle Aged; D011474:Prosthesis Design; D016896:Treatment Outcome; D014792:Visual Acuity