Four-year experience with a silicone refractive multifocal intraocular lens

Area of Science:

• Ophthalmology
• Biomedical Engineering

Background:

• The Array SA40N is a foldable silicone refractive multifocal intraocular lens (IOL).
• Long-term outcomes of this specific IOL implantation are not extensively documented.

Purpose of the Study:

• To evaluate the long-term efficacy and safety of the Array SA40N silicone refractive multifocal IOL.
• To assess visual outcomes, refractive stability, and patient satisfaction up to 4 years post-implantation.

Main Methods:

• Retrospective evaluation of 72 eyes from 41 patients implanted with the Array SA40N IOL.
• Follow-up period of up to 4 years, assessing visual acuities (distance and near), refraction, astigmatism, and patient-reported outcomes.
• Analysis included incidence of glare, halos, and need for neodymium:YAG (Nd:YAG) laser capsulotomy.

Main Results:

• Refraction and corneal astigmatism remained stable over the 4-year follow-up period.
• Good uncorrected and corrected distance and near visual acuities were maintained.
• A decrease in patient satisfaction with near vision was noted at 2 years, with 66.7% of eyes requiring Nd:YAG laser capsulotomy.

Conclusions:

• The Array SA40N silicone refractive multifocal IOL demonstrates stable visual performance for distance and near vision over 4 years.
• Despite potential posterior capsule opacification, the IOL maintained good visual function.
• While generally effective, a slight decline in near vision satisfaction and a notable rate of capsulotomy were observed.