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Related Experiment Video

Updated: Jul 3, 2026

Correction of Presbyopia by Monocular Bi-Aspheric Ablation Profile
05:46

Correction of Presbyopia by Monocular Bi-Aspheric Ablation Profile

Published on: September 20, 2024

[Bioptics with multifocal lenses and Lasek].

A Liekfeld1, L Friederici, P Rieck

  • 1Universitäts-Augenklinik, Charité, Campus Virchow-Klinikum, Humboldt-Universität, Augustenburger Platz 1, 13353 Berlin, Deutschland. anja.liekfeld@charite.de

Der Ophthalmologe : Zeitschrift Der Deutschen Ophthalmologischen Gesellschaft
|July 9, 2008
PubMed
Summary

Combining multifocal lens implants with laser eye surgery (bioptics) effectively corrects residual refractive errors without compromising visual function. This approach offers superior outcomes compared to multifocal lenses alone.

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Last Updated: Jul 3, 2026

Correction of Presbyopia by Monocular Bi-Aspheric Ablation Profile
05:46

Correction of Presbyopia by Monocular Bi-Aspheric Ablation Profile

Published on: September 20, 2024

Area of Science:

  • Ophthalmology
  • Refractive Surgery
  • Corneal Surgery

Background:

  • Achieving precise postoperative emmetropia is crucial for optimal outcomes with multifocal intraocular lenses (IOLs).
  • Bioptics, combining IOL implantation with refractive surgery, can correct residual refractive errors but raises concerns about visual side effects.

Purpose of the Study:

  • To evaluate the functional outcomes of combining laser subepithelial keratomileusis (LASEK) with multifocal IOL implantation.
  • To assess potential declines in contrast sensitivity, low-contrast visual acuity, glare visual acuity, and night-driving simulation after bioptics.

Main Methods:

  • LASEK was performed on eight eyes of seven patients following multifocal IOL implantation.
  • Visual acuity, contrast sensitivity, low-contrast visual acuity, glare visual acuity, and night-driving simulation were assessed preoperatively and 6 months postoperatively.

Main Results:

  • Postoperative contrast sensitivity and low-contrast visual acuity showed non-significant improvements.
  • Glare visual acuity improved significantly, with measurements increasing from 12.5-50% to 28.5-57%.
  • Night-driving simulation results remained stable, with four patients meeting strict criteria.

Conclusions:

  • Bioptics, combining multifocal IOLs with LASEK, effectively minimizes postoperative ametropia without negatively impacting visual function.
  • This combined approach appears to offer superior results compared to exclusive multifocal IOL implantation.