Visual performance after bilateral implantation of a new diffractive aspheric multifocal intraocular lens with a 3.5 D addition

Eur J Ophthalmol. Jan-Feb 2014;24(1):35-43. doi: 10.5301/ejo.5000315. Epub 2013 Jun 2.

Abstract

Purpose: To evaluate visual performance after implantation of a new diffractive aspheric multifocal intraocular lens (MIOL) with a +3.50 D addition power.

Methods: A total of 24 cataract patients were bilaterally implanted with the Diffractiva-aA MIOL in 2 ophthalmologic centers and followed for 6 months. Postoperative evaluations included visual acuities (VA) at various distances, defocus testing, contrast sensitivity (CS) measurements, and patient satisfaction questionnaire.

Results: Six months postoperatively, binocular uncorrected VA (mean ± SD; logMAR) was 0.00 ± 0.05 (≈ 20/20) for distance, 0.06 ± 0.13 (≈ 20/23) for intermediate (1 m), and 0.00 ± 0.05 (≈ 20/20) for near (40 cm). All patients achieved uncorrected VA of 20/25 or better for distance and near, and 20/40 or better at 1 m. Monocular and binocular defocus curves showed 2 peaks of maximum VA at the distance focus (0.0 D) and the near focus (-2.5 D) and a good range of intermediate vision with the lowest mean acuity being at -1.5 D defocus. Photopic and mesopic CS were within the standard normal range. The majority of patients (n = 22; 91.7%) were spectacle independent; 8.3% (n = 2) reported wearing glasses occasionally for very small print (1 patient) or for watching television (1 patient). Overall, all patients were "very satisfied" (n = 22; 91.7%) or "satisfied" (n = 2; 8.3%) with the procedure.

Conclusions: The new Diffractiva-aA MIOL provided a full range of vision from near to far generating highly satisfied, spectacle independent patients with only minimal visual disturbances at night.

Publication types

  • Multicenter Study

MeSH terms

  • Aged
  • Aged, 80 and over
  • Axial Length, Eye
  • Female
  • Humans
  • Lens Implantation, Intraocular*
  • Lenses, Intraocular*
  • Male
  • Middle Aged
  • Patient Satisfaction
  • Phacoemulsification*
  • Prospective Studies
  • Prosthesis Design
  • Refraction, Ocular / physiology*
  • Surveys and Questionnaires
  • Treatment Outcome
  • Vision, Binocular / physiology*
  • Visual Acuity / physiology*