Key takeaways:
- A examine in contrast the optical and refractive efficiency of an enhanced monofocal IOL vs. an aberration-free monofocal IOL.
- Uncorrected distance visible acuity was higher with the EM IOL than with the AFM IOL.
KIAWAH ISLAND, S.C. — Eyes implanted with a novel enhanced monofocal IOL achieved usable intermediate and close to visible acuity whereas sustaining distance imaginative and prescient, in response to Christine Hill, MD, at Kiawah Eye.
“Enhanced monofocal IOLs have been proven to extend depth of subject,” Hill, a postgraduate 12 months 2 resident on the Medical College of South Carolina, mentioned. “This IOL makes use of a 1.5-mm central zone with higher-order aspheric coefficients on its posterior floor to increase depth of focus.
Picture: Nancy Hemphill
“The aim of this examine was to guage the optical and refractive efficiency of this lens,” she mentioned, “and we additionally had been going to match it to its predecessor, which is an aberration-free monofocal IOL.”
Hill mentioned the potential observational examine concerned 29 wholesome eyes focused for emmetropia with the improved monofocal IOL (EM IOL), and these outcomes had been in contrast with knowledge beforehand obtained with the EM IOL’s predecessor, an aberration-free monofocal IOL (AFM-IOL), in 26 wholesome eyes.
“With the improved monofocal IOL, the typical uncorrected distance visible acuity in our inhabitants was 20/22, and 93% of eyes achieved 20/25 or higher,” she mentioned. “With correction, it was 20/20, and 97% of eyes achieved 20/25 or higher.”
Common distance corrected intermediate visible acuity was 20/34, and 90% of eyes had been 20/40 or higher, Hill mentioned. The common distance corrected close to visible acuity was 20/38, and 83% of eyes had been 20/40 or higher.
“Wanting on the depth of focus curve … there’s about 1.25 D of steady depth of focus for distance corrected intermediate visible acuity of about 20/32 and minimal spherical aberrations at pupil sizes 3 mm to six mm,” Hill mentioned. “There’s additionally minimal residual refractive error, with 97% of eyes getting inside 0.5 D of emmetropia, and the IOL calculation prediction error utilizing Barrett Common system was 0.15 D.”
Automated refraction utilizing three totally different units was practically emmetropic, “apart from utilizing the Hartmann-Shack gadget; it was a few 0.25 D statistically vital overestimate of myopia,” Hill mentioned. “And you realize [that] … with a real premium prolonged depth of focus lens, it typically overestimates myopia throughout the board to a higher extent.”
Uncorrected distance visible acuity was higher with the EM IOL than with the AFM IOL, Hill mentioned, and there was extra residual refractive error with the AFM IOL.
“However with correction, there’s no statistically vital distinction,” she added.
The EM IOL confirmed improved visible acuity with 1.5 D of myopic defocus, and with a pupil dimension of two.5 mm, inner and whole higher-order aberrations had been statistically considerably totally different throughout the board, Hill mentioned.
“In conclusion, eyes that had been implanted with this new IOL tended to attain practical intermediate and close to visible acuity with out compromising distance visible acuity,” she mentioned.
Sources/Disclosures
Collapse
Hill C. Optical efficiency and refractive outcomes of a novel monofocal intraocular lens with intermediate optimized optics. Introduced at: Kiawah Eye; Could 29-31, 2025; Kiawah Island, South Carolina.
Disclosures:
Hill stories no related monetary disclosures.
