Refractive outcomes after multifocal intraocular lens exchange

Area of Science:

• Ophthalmology
• Refractive Surgery
• Intraocular Lenses

Background:

• Multifocal intraocular lenses (IOLs) are widely used to correct refractive errors and presbyopia.
• However, some patients may require IOL exchange due to visual disturbances or dissatisfaction.
• Evaluating outcomes after multifocal IOL exchange is crucial for understanding the efficacy of secondary IOL implantation.

Purpose of the Study:

• To assess the refractive outcomes following multifocal intraocular lens (IOL) exchange.
• To determine the safety and visual results of secondary IOL implantation after explantation of a multifocal IOL.

Main Methods:

• A retrospective case series involving 29 patients (35 eyes) who underwent multifocal IOL explantation and subsequent IOL implantation.
• Data collected included IOL type, surgical indication, corrected distance visual acuity (CDVA), and refractive prediction error before and after exchange.

Main Results:

• Following multifocal IOL exchange, 100% of eyes achieved a CDVA of 20/40 or better.
• The mean refractive prediction error significantly decreased from 0.22 D to -0.09 D (P < .05).
• The median absolute refractive prediction error also significantly decreased from 0.43 D to 0.23 D (P < .05).

Conclusions:

• Multifocal IOL exchange is a safe procedure associated with favorable visual outcomes.
• Secondary IOL implantation after multifocal IOL explantation can lead to improved refractive accuracy and visual acuity.
• The choice of the second IOL and its final position do not appear to compromise the achieved visual results.