Funktionelle Ergebnisse 1 Jahr nach Implantation einer bitorischen, trifokalen Intraokularlinse

Zusammenfassung

Ziel: Beurteilung der visuellen, refraktiven Ergebnisse 1 Jahr nach Implantation einer trifokalen diffraktiven torischen Intraokularlinse (IOL) im Rahmen einer Kataraktoperation. Methode: In einer prospektiven Studie wurde bei Patienten mit einer kalkulierten postoperativen Hornhautverkrümmung von ≥ 0,75 dpt im Rahmen der Kataraktoperation eine diffraktiv-trifokale torische Intraokularlinse (AT LISA tri toric 939MP, Carl Zeiss Meditec, Jena, Deutschland) implantiert. Ein Jahr postoperativ wurden der monokulare und binokulare Nah-, Intermdiär- und Fernvisus, unkorrigiert und korrigiert, sowie die Refraktion evaluiert. Ergebnis: 20 Patienten (40 Augen) mit einem mittleren Alter von 59 ± 11 Jahren, hiervon 15 Frauen, wurden im Rahmen der Studie bilateral an einer Katarakt operiert. Ein Jahr postoperativ zeigte sich ein binokularer unkorrigierter Fernvisus (UDVA) von 0,10 logMAR ± 0,11 bei einem korrigierten Fernvisus (CDVA) von 0,00 logMAR ± 0,08. Der binokulare Intermediärvisus (UIVA) lag bei 0,00 logMAR ± 0,05, der binokulare unkorrigierte Nahvisus (UNVA) bei 0,09 logMAR ± 0,07. 100 % der Patienten lagen postoperativ ± 1,0 dpt von der Zielrefraktion. Selbst nach 1 Jahr zeigte sich bei keinem der Patienten eine IOL-Rotation > 5°. Schlussfolgerung: Die Implantation einer trifokal-torischen Intraokularlinse bietet eine effektive Wiederherstellung für das Sehen im Nah-, Intermediär- und Fernbereich bei guter Rotationsstabilität der IOL.

Abstract

Purpose: An evaluation of the visual and refractive results was undertaken one year after implantation of a trifocal diffractive toric intraocular lens (IOL) during cataract surgery. Methods: In a prospective study patients with a calculated postoperative corneal astigmatism of ≥ 0.75 D received a diffractive trifocal toric IOL (AT LISA tri toric 939MP, Carl Zeiss Meditech, Jena, Germany) during cataract surgery. One year postoperatively the near, intermediate and distance visual acuity, corrected and uncorrected vision as well as refraction were evaluated. Results: 20 patients (40 eyes) with a median age of 59 ± 11 years of which 15 were female underwent bilateral cataract surgery. One year postoperatively a binocular uncorrected distance visual acuity (UDVA) of 0.10 logMAR ± 0.11 and a corrected distance visual acuity (CDVA) of 0.00 logMAR ± 0.08 could be found. Binocular intermediate visual acuity (UIVA) and near visual acuity (UNVA) were 0.00 logMAR ± 0.05 and 0.09 logMAR ± 0.07, respectively. 100 % of patients were between ± 1.0 D from target refraction. Even 1 year after surgery no patient had an IOL rotation greater than 5°. Conclusion: The implantation of a trifocal toric intraocular lens offers an effective way for visual rehabilitation in near, intermediate and far distances with a good rotational stability of the IOL platform.

Schlüsselwörter

Katarakt - refraktive Chirurgie - physiologische Optik

Key words

cataract - refractive surgery - physiological optics

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