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Klin Monbl Augenheilkd 2023; 240(04): 435-439
DOI: 10.1055/a-2013-2329
Klinische Studie

Posterior Corneal Asphericity and the Refractive Outcome after Combined Phacovitrectomy

Posteriore Hornhautasphärizität und das refraktive Ergebnis nach einer kombinierten Phakovitrektomie
Mark Rabinovich
Clinique de lʼOeil Onex, Geneva, Switzerland
,
Jean-Marc Baumgartner
Clinique de lʼOeil Onex, Geneva, Switzerland
,
Jerome Bovet
Clinique de lʼOeil Onex, Geneva, Switzerland
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Abstract

Background We assessed the correlation of posterior corneal asphericity and the refractive prediction error of the SRK-T and Barrett II Universal formulas for eyes following phacovitrectomy with peeling of the internal limiting membrane (ILM).

Patients and Methods We retrospectively analyzed 41 eyes of 41 patients following a combined phacovitrectomy with ILM peeling. Surgeries were performed by one fellowship-trained vitreoretinal surgeon between 2016 and 2021.

Results Of the 41 patients, 41 eyes were included, with all having at least 1 month of postoperative data. Of the 41 eyes, 19 eyes were female (46%) and 22 were male (54%). The average age of the study population was 77.5 ± 10.7 years. The mean axial length (AL) was 22.7 ± 4.6 mm and the mean anterior chamber depth (ACD) was 3 ± 0.8 mm. The mean posterior Q value was − 0.29 ± 0.27. The mean absolute error (MAE) values 1-month postoperatively for the SRK-T and Barrett II Universal formulas were 0.73 and 0.65, respectively. Regression analysis yielded a significant correlation between posterior corneal asphericity and SRK-T MAE (r = 0.35, R2 = 0.12, p < 0.05) only.

Conclusions Posterior corneal surface asphericity is correlated to the refractive error of the SRK-T formula for eyes following phacovitrectomy.

Zusammenfassung

Wir untersuchten die Korrelation der hinteren Hornhautasphärizität und des refraktiven Vorhersagefehlers der SRK-T und Barrett II Universal Formeln für Augen nach Phakovitrektomie mit Peeling der Membrana limitans interna (ILM).

Die mittleren absoluten Fehler (MAE) 1 Monat postoperativ betrugen für die SRK-T- und Barrett II Universal-Formeln 0,73 bzw. 0,65. Wir fanden eine signifikante Korrelation zwischen der posterioren Hornhautasphärizität und dem SRK-T MAE (r = 0,35, R2 = 0,12, p < 0,05).

Key words

asphericity - phacovitrectomy - cataract - internal limiting membrane

Schlüsselwörter

Katarakt - Phakovitrektomie - Asphärizität


Publication History

Received: 04 July 2022

Accepted: 04 January 2023

Article published online:
25 April 2023

© 2023. Thieme. All rights reserved.

Georg Thieme Verlag KG
Rüdigerstraße 14, 70469 Stuttgart, Germany

 

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