Visual outcomes after bilateral trifocal diffractive intraocular lens implantation

Area of Science:

• Ophthalmology
• Biomedical Engineering
• Optics

Background:

• Advancements in intraocular lens (IOL) technology aim to minimize the need for additional optical corrections post-surgery.
• The FineVision trifocal IOL is a new model designed to enhance visual function.

Purpose of the Study:

• To evaluate the visual performance after bilateral cataract surgery with FineVision trifocal IOL implantation.
• To assess corrected distance visual acuity (CDVA), intermediate visual acuity (DCIVA), and near visual acuity (DCNVA).

Main Methods:

• Prospective, nonrandomized, observational study involving 22 patients (44 eyes).
• Visual acuity, contrast sensitivity (CS), and aberrations were measured pre- and post-surgery (3 months).
• Defocus curves and adverse photic phenomena were assessed under photopic and mesopic conditions.

Main Results:

• Excellent binocular visual acuities were achieved: CDVA -0.05 ± 0.05, DCIVA 0.15 ± 0.10, DCNVA 0.06 ± 0.10.
• Mean Pelli-Robson contrast sensitivity was 1.40 ± 0.14 log units.
• Significant differences in defocus curves (p < 0.0001) and a low disturbance index (0.28 ± 0.22) were noted.

Conclusions:

• Bilateral implantation of the FineVision IOL provides a comprehensive range of vision.
• The study demonstrated satisfactory contrast sensitivity and a minimal incidence of adverse photic phenomena.
• The FineVision trifocal IOL is effective in improving visual outcomes after cataract surgery.