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Dynamics of contrast sensitivity parameters after implantation of a fully refractive EDOF intraocular lens according to binoptometry data

Year: 2026, volume 22 Issue: №2 Pages: 154-158
Heading: Ophthalmology Article type: Original article
Authors: Gorynina О.А., Fayzrakhmanov R.R., Pavlovskiy O.A.
Organization: National Medical and Surgical Center n. a. N. I. Pirogov, Eye Microsurgery Center “MediKom”, Dzerzhinsk, Russia
Summary:

Objective: to evaluate changes in contrast sensitivity after implantation of a fully refractive extended depth-of-focus (EDOF) intraocular lens (IOL) using binoptometry in Decimal and logMAR scales before surgery and at 1 and 3 months after surgical treatment. Material and methods. The study included 12 patients (23 eyes) who underwent phacoemulsifcation with implantation of an EDOF IOL. Contrast sensitivity was assessed using the Binoptometer® 4P visual function analyzer at contrast levels of 80, 40, 20, 10, and 5% in Decimal and logMAR scales. Examinations were performed preoperatively and at 1 and 3 months after surgery. Statistical analysis included Friedman and Wilcoxon tests. Results. Statistically signifcant improvement in contrast sensitivity was observed for most parameters in both the logMAR and Decimal systems. The most pronounced positive changes were found at 80 and 20% contrast levels without correction. The main diferences were detected between the preoperative examination and the postoperative follow-up periods at 1 and 3 months. In most cases, no signifcant diferences were observed between 1 and 3 months, indicating stability of the achieved functional outcome. Conclusion. Implantation of a fully refractive EDOF IOL was associated with improved contrast sensitivity under diferent contrast conditions. Comparison of Decimal and logMAR scales demonstrated consistency between the two methods in assessing functional visual outcomes. Binoptometry appears to be an informative method for assessing contrast sensitivity after cataract surgery.

Keywords: logMAR, Decimal, contrast sensitivity, cataract surgery, binoptometry

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All articles of the authors: Pavlovsky О.А., Gorynina О.А., Fayzrakhmanov R.R.

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