Posterior Corneal Asphericity Effect on Postoperative Astigmatism after EDOF Intraocular Lens Implantation in Cataract Patients

Mark Rabinovich; Ivo Guber; Laëtitia Jessy Niegowski; Ana Maria Aramburu Del Boz; Danial Al Khatib; Jean-Pascal Genestier; Jerome Bovet

doi:10.1155/2021/1877516

Posterior Corneal Asphericity Effect on Postoperative Astigmatism after EDOF Intraocular Lens Implantation in Cataract Patients

J Ophthalmol. 2021 Nov 3:2021:1877516. doi: 10.1155/2021/1877516. eCollection 2021.

Authors

Mark Rabinovich¹, Ivo Guber^{1

2}, Laëtitia Jessy Niegowski¹, Ana Maria Aramburu Del Boz¹, Danial Al Khatib¹, Jean-Pascal Genestier¹, Jerome Bovet¹

Affiliations

¹ OnO, Ophthalmology Network Organisation, Clinique de L'Oeil SA, Onex, Geneva, Switzerland.
² University Hospital of Geneva, Department of Opthalmology, Geneva, Switzerland.

Abstract

Aim: To assess the impact of posterior corneal asphericity on postoperative astigmatism.

Methods: We included retrospectively 70 eyes of 70 patients that underwent cataract surgery. We included data of the Q value, K _max, K1, K2, astigmatism AL, and ACD. We performed a vectorial analysis to calculate the astigmatic vectors.

Results: Seventy eyes were evaluated. 40 eyes were of females (58%) and 30 of males (42%). The average cohort age was 73 ± 8.9 years. Axial length (AL) was 23.5 ± 0.9, anterior chamber depth (ACD) was 3.13 ± 0.3, and the average posterior Q value was -0.35 ± 0.2. The only significant predictive variable for the correction index (CI) was the posterior Q value (r = 0.24, p < 0.05) and for the surgically induced astigmatism (SIA) (β = 0.34, r = 0.58, p < 0.05).

Conclusion: Posterior corneal surface asphericity significantly influences the surgically induced astigmatism and the overcorrection for cataract patients after Lucidis EDOF IOL implantation.