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Erschienen in: Graefe's Archive for Clinical and Experimental Ophthalmology 2/2024

06.06.2023 | Review Article

Chord mu and chord alpha as postoperative predictors in multifocal intraocular lens implantation

verfasst von: Andrius Montrimas, Reda Žemaitienė, Ke Yao, Andrzej Grzybowski

Erschienen in: Graefe's Archive for Clinical and Experimental Ophthalmology | Ausgabe 2/2024

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Abstract

Purpose

With the aging population, the prevalence of presbyopia and the popularity of multifocal intraocular lenses is also growing worldwide. Unfortunately, in some cases, they are still associated with postoperative visual disturbances. Recent literature started to evaluate angle kappa- and angle alpha-derived metrics of chord mu and chord alpha as possible predictive values for visual outcomes after multifocal intraocular lens implantation but the published results are inconsistent between studies. Thus, this article aims to review the role of chord mu and chord alpha as postoperative predictors after multifocal intraocular lens implantation and lay the foundation for further research.

Methods

Relevant articles were identified using the following keywords: “presbyopia,” “multifocal intraocular lens,” “angle kappa,” “angle alpha,” “Chord mu,” and “Chord alpha” up to June 2022. An attempt was made to present the majority of publications that addressed the topic.

Conclusions

Chord mu and chord alpha have a predictive role on the outcomes after multifocal intraocular lens implantation but to a different extent. Cataract surgeons should take them into consideration and avoid implanting a multifocal intraocular lens for patients with speculated critical values of chord mu and alpha above 0.5–0.6 mm, depending on the device used for measurement and the multifocal intraocular lens implanted. Currently, chord alpha seems to be a more stable, more widely applicable, and reliable determinant in predicting postoperative outcomes and in patient selection prior to multifocal intraocular lens implantation when compared to chord mu. To draw conclusions on the topic, a controlled study is needed.
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Metadaten
Titel
Chord mu and chord alpha as postoperative predictors in multifocal intraocular lens implantation
verfasst von
Andrius Montrimas
Reda Žemaitienė
Ke Yao
Andrzej Grzybowski
Publikationsdatum
06.06.2023
Verlag
Springer Berlin Heidelberg
Erschienen in
Graefe's Archive for Clinical and Experimental Ophthalmology / Ausgabe 2/2024
Print ISSN: 0721-832X
Elektronische ISSN: 1435-702X
DOI
https://doi.org/10.1007/s00417-023-06098-x

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Metastase in der periokulären Region

Metastasen Leitthema

Orbitale und periokuläre metastatische Tumoren galten früher als sehr selten. Aber mit der ständigen Aktualisierung von Medikamenten und Nachweismethoden für die Krebsbehandlung werden neue Chemotherapien und Strahlenbehandlungen eingesetzt. Die …

Staging und Systemtherapie bei okulären und periokulären Metastasen

Metastasen Leitthema

Metastasen bösartiger Erkrankungen sind die häufigsten Tumoren, die im Auge diagnostiziert werden. Sie treten bei ungefähr 5–10 % der Patienten mit soliden Tumoren im Verlauf der Erkrankung auf. Besonders häufig sind diese beim Mammakarzinom und …

Wundheilung nach Trabekulektomie

Trabekulektomie CME-Artikel

Die überschießende Wundheilung in der filtrierenden Glaukomchirurgie ist ein zentraler Faktor für ein operatives Versagen. Nach der Einführung der Trabekulektomie in den 1960er-Jahren wurden viele Faktoren erkannt, die mit einer vermehrten …

„standard operating procedures“ (SOP) – Vorschlag zum therapeutischen Management bei periokulären sowie intraokulären Metastasen

Metastasen Leitthema

Peri- sowie intraokuläre Metastasen sind insgesamt gesehen selten und meist Zeichen einer fortgeschrittenen primären Tumorerkrankung. Die Therapie ist daher zumeist palliativ und selten kurativ. Zudem ist die Therapiefindung sehr individuell. Die …

Update Augenheilkunde

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