Enhanced Monofocal Intraocular Lenses: A Retrospective, Comparative Study between Three Different Models

Area of Science:

• Ophthalmology
• Biomedical Engineering
• Optics

Background:

• Cataract surgery is a common procedure to restore vision.
• Enhanced monofocal intraocular lenses (IOLs) aim to improve visual outcomes.
• Comparing the performance of new IOL designs is crucial for clinical decision-making.

Purpose of the Study:

• To compare visual performance and optical quality of three new enhanced monofocal IOLs: Tecnis Eyhance ICB00, Vivinex Impress XY1-EM, and IsoPure 123.
• To evaluate visual acuity, contrast sensitivity, and intraocular aberrations after implantation of these IOLs.

Main Methods:

• Retrospective study of 36 patients (72 eyes) undergoing bilateral IOL implantation.
• Inclusion criteria: cataracts, corneal astigmatism < 0.75 D, no ocular comorbidities.
• Evaluated visual acuities, defocus curve, contrast sensitivity, Point Spread Function (PSF), aberrations (LOAs, HOAs), objective scatter index (OSI), and photic phenomena (halo, glare).

Main Results:

• Similar visual acuity outcomes, PSF, LOAs, HOAs, and OSI were observed across all three IOL groups.
• No statistically significant differences in photopic contrast sensitivity, halo, or glare perception were found.
• All evaluated IOLs demonstrated comparable results in visual function and optical quality.

Conclusions:

• Tecnis Eyhance ICB00, Vivinex Impress, and IsoPure IOLs provide similar visual acuity, contrast sensitivity, and intraocular aberration profiles.
• These enhanced monofocal IOLs do not significantly influence photic phenomena in patients without ocular comorbidities.
• The choice between these IOLs may not be critical based on optical performance alone in this patient cohort.