Functional Visual Outcomes After Implantation of Refractive Segmental Multifocal Rotational Asymmetric Intraocular...

Area of Science:

• Ophthalmology
• Biomedical Engineering

Background:

• Cataract surgery requires effective intraocular lens (IOL) solutions.
• Multifocal IOLs aim to restore vision at various distances.
• Segmental refractive multifocal IOLs represent an advancement in IOL technology.

Purpose of the Study:

• To evaluate the visual outcomes, specifically visual acuity, of the ACUNEX VarioMax segmental refractive multifocal intraocular lens.
• Assess the performance of the ACUNEX VarioMax IOL in terms of visual acuity at distance, intermediate, and near.

Main Methods:

• Prospective, non-randomized study involving 34 eyes (17 patients) with bilateral cataracts.
• Inclusion criteria: age >30 years, predicted postoperative astigmatism ≤0.75 D.
• Evaluated uncorrected and distance-corrected visual acuities, contrast sensitivity, defocus curve, and patient-reported outcomes after 3 months.

Main Results:

• Mean uncorrected distance visual acuity was 0.02 ± 0.09 logMAR.
• Mean uncorrected intermediate visual acuity was 0.15 ± 0.12 logMAR at 80 cm.
• Mean uncorrected near visual acuity was 0.24 ± 0.10 logMAR at 40 cm.
• Defocus curve showed good binocular visual acuity across a range of -2.50 D.
• Median contrast sensitivity was 1.48 logCS (photopic) and 1.25 logCS (mesopic).

Conclusions:

• The ACUNEX VarioMax segmental multifocal IOL provides good visual acuity at all distances.
• The lens demonstrates effective intermediate visual acuity and depth of focus.
• High spectacle independence and patient satisfaction were reported.