Effectiveness of Enhanced Monofocal Intraocular Lens with Mini-Monovision in Improving Visual Acuity

Area of Science:

• Ophthalmology
• Biomedical Engineering

Background:

• Cataract surgery aims to restore vision, with intraocular lenses (IOLs) being crucial implants.
• Mini-monovision is a surgical technique to achieve spectacle independence.
• Enhanced monofocal IOLs aim to improve visual outcomes beyond standard monofocal options.

Purpose of the Study:

• To compare the clinical outcomes of Vivinex Impress (XY1-EM) enhanced monofocal IOLs versus standard Vivinex (XY1) IOLs.
• To evaluate the efficacy of these IOLs in a mini-monovision cataract surgery setting.

Main Methods:

• Retrospective study involving bilateral implantation of either XY1-EM or XY1 IOLs in a -1D mini-monovision configuration.
• Assessment of visual acuity at various distances (5m to 30cm), spectacle dependence, contrast sensitivity, and patient-reported outcomes (VFQ-25).

Main Results:

• The XY1-EM group showed significantly improved intermediate and near visual acuity (30-50 cm) and reduced spectacle dependence for intermediate tasks.
• Higher Visual Function Questionnaire (VFQ-25) scores were reported in the XY1-EM group across several domains, including general vision and near activity.
• No significant differences were observed in glare, contrast sensitivity, or overall quality of vision scores between the groups.

Conclusions:

• The Vivinex Impress (XY1-EM) IOL in a mini-monovision setup enhances intermediate and near visual acuity.
• This IOL option leads to decreased reliance on spectacles for patients.
• XY1-EM presents a valuable alternative for patients desiring improved vision quality and reduced spectacle use after cataract surgery.