The Influence of Angles Kappa and Alpha and Pupil Size on Vision after Implantation of Soleko Evolve and Lucidis Lenses with a “Pure” EDOF Structure

Abstract

Background: Two models of artificial intraocular lenses with a “pure” EDOF structure, i.e. Soleco Evolve and Lucidis, were used in 36 patients in 43 eyes. Results of postoperative visual function were analysed, like also a correlation between preoperatively measured parameters of pupil size, kappa and alpha angles. Methods and Findings: Cataract and an unacceptable refractive error mainly hyperopia, were the reasons for the removal of the lens from the eye. High values of angles kappa and alpha or a large pupil were not a disqualifying factor for implantation of these lens models. The beneficial effect of improving vision too far and near distances was achieved in most eyes. The dependence on light intensity and pupil size are the main factors affecting visual acuity too far and near distances. High values of angles alpha and kappa had only a slight, negative effect on the postoperative visual acuity values. Conclusion: A sufficiently large pupil size determined preoperatively allows for satisfactory visual acuity too far and near distances to be obtained. In hyperopic eyes after refractive lens exchange, the values of visual acuity to far distances were slightly lower than before surgery. This information determines the indication for the use of “pure” EDOF lenses in non-dominant eyes and in patients with a large pupil. In cases of a very large pupil diagnosed preoperatively, vision to near distances without the need for additional correction, obtained in good lighting conditions, is an added value, which seems to be a sufficient advantage over the benefits of monofocal lens implantation.