Enhanced Monofocal Extended Depth of Focus IOL With a Diffractive Surface Design

Area of Science:

• Ophthalmology
• Refractive Surgery
• Intraocular Lenses

Background:

• Cataract surgery is a common procedure to restore vision.
• Intraocular lenses (IOLs) are implanted to correct refractive errors.
• Extended depth of focus (EDOF) IOLs aim to provide a broader range of clear vision.

Purpose of the Study:

• To evaluate refractive and visual outcomes after cataract surgery with a new enhanced monofocal EDOF IOL.
• To assess the performance of the xact Mono-EDoF IOL.

Main Methods:

• Prospective study of 50 eyes from 25 patients implanted with the xact Mono-EDoF IOL.
• Evaluated refractive error, uncorrected (UDVA) and corrected (CDVA) distance visual acuity.
• Obtained monocular visual acuity across different vergences (defocus curve).
• Follow-up at 12 months postoperatively.

Main Results:

• Mean postoperative spherical equivalent was -0.15 ± 0.28 D.
• 95% of eyes achieved spherical equivalent within ±0.50 D.
• 88% and 100% of eyes achieved UDVA and CDVA of 20/25 or better, respectively.
• Defocus curve demonstrated good visual acuity at distance and intermediate distances (1.25 D depth of focus).
• No visual disturbances were reported.

Conclusions:

• The xact Mono-EDoF IOL offers good visual performance at far and intermediate distances.
• This EDOF IOL may be suitable for patients seeking reduced spectacle dependence, especially for intermediate vision.
• The lens demonstrates favorable refractive and visual outcomes post-cataract surgery.