By Christina P. Myronidou, student of the Master in Clinical Optometry and Vision Therapy

 Abstract

 Alarming prevalence of myopia and associated ocular complications highlight the need for immediate interventions. Multifocal contact lenses (MFCLs) appear to have a potential as an optical strategy in the field of myopia control. This literature review aims to examine current evidence in relation to their efficacy in slowing myopia progression and axial elongation and identify critical parameters affecting their performance. Efficacy of MFCLs in myopia control is presented among several randomized clinical trials, showing an average percentage of 40-50% reduction in myopia progression and similar numbers to axial elongation. However, outcomes vary across studies, since several parameters interfere in the control process with each factor playing a distinct role. Center-distance designs and concentric rings have been effective in inducing peripheral myopic defocus, which is the primary mechanism of their action. Higher add powers and adequate wearing time provides stronger treatment effect, while pupil size affects the amount of defocus delivered to the peripheral retina. Age of initiation, visual performance and adaptation are considerable parameters for a long-term success. Despite their advantages, their implementation in clinical practice is limited and therefore, specific guidelines should be given.

Keywords: multifocal contact lenses, myopia control, lens design, add power, visual performance, pupil size

Download the full Research Work: Myronidou, C. P. (2025). Multifocal Contact Lenses in Myopia Control and Parameters Affecting their Efficacy.SAERA