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Comparative Analysis of Short-Term Visual Performance of Four Daily Simultaneous Vision Center-Near Multifocal
Ainhoa Molina-Martín1, Elena Martínez-Plaza, Kevin Mena-Guevara
1Group of Optics and Visual Perception, Department of Optics (A.M.-M., E.M.-P., K.M.-G., D.F., V.G.-V., D.P.P.), Pharmacology and Anatomy, University of Alicante, Spain; University of Valladolid (E.M.-P.), Valladolid, Spain; Alicante Institute for Health and Biomedical Research (ISABIAL) (V.G.-V.), Alicante, Spain; and Department of Ophthalmology (D.P.P.), Advanced Clinic Optometry Unit, Vithas Medimar International, Alicante, Spain.
Objectives:
To compare the visual performance and subjective satisfaction of four daily disposable multifocal contact lenses (MCLs) in presbyopic subjects. Likewise, a comparative analysis of the performance of symmetrical and asymmetrical near addition designs was performed.
Methods:
Twenty presbyopic participants were enrolled in this randomized crossover study evaluating short-term visual performance. The assessed outcomes included distance, intermediate, and near visual acuity (VA), defocus curves, contrast sensitivity function (CSF), stereopsis, and patient satisfaction measured by a visual analogue scale (VAS).
Results:
Significantly better distance VA was found for BioTrue compared with MyDay ( P =0.018). By contrast, near VA was significantly more limited with BioTrue compared with the rest of contact lenses ( P ≤0.036). No significant differences in CSF were found between MCLs ( P >0.05). Asymmetrical designs showed better stereopsis than symmetrical designs ( P ≤0.018). VAS scale showed a nonsignificant trend to better scores for symmetrical designs for distance vision, and the opposite for near vision ( P >0.05).
Conclusions:
Daily disposable MCLs demonstrated satisfactory short-term performance, although design differences should guide individualized selection to optimize visual outcomes. Notably, asymmetrical lens designs did not compromise stereopsis and may offer superior near VA compared with symmetrical alternatives.
