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Related Experiment Videos

Visual properties of the foldable Array multifocal intraocular lens

H Weghaupt1, S Pieh, C Skorpik

  • 1University Eye Clinic Vienna, Department B, Austria.

Journal of Cataract and Refractive Surgery
|January 1, 1996
PubMed
Summary

The Array multifocal intraocular lens (IOL) provides good distance vision but has limited intermediate and near acuity. Reading performance can be enhanced with additional plus power, achieving good near vision with standard reading glasses.

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Area of Science:

  • Ophthalmology
  • Biomedical Engineering

Background:

  • Multifocal intraocular lenses (IOLs) aim to provide clear vision at multiple distances.
  • The AMO Array SSM 26-NB is a specific type of multifocal IOL designed with a five-zone structure.

Purpose of the Study:

  • To assess the visual performance of the Array SSM 26-NB multifocal IOL.
  • Key parameters evaluated include visual acuity, depth of focus, contrast sensitivity, and glare disability.

Main Methods:

  • The study involved evaluating 14 eyes implanted with the Array IOL.
  • Visual acuity was measured at distance and near, with and without correction.
  • Depth of focus, contrast sensitivity, and glare disability were assessed using standardized methods.

Main Results:

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  • The Array IOL provided good distance visual acuity.
  • Near visual acuity was functional but could be improved with supplemental plus power.
  • Contrast sensitivity and glare disability were found to be lower compared to monofocal IOLs and normal eyes.

Conclusions:

  • The Array IOL offers effective distance vision correction.
  • Adequate near vision can be achieved with the distance focus and reading glasses.
  • While contrast sensitivity is reduced, it remains within acceptable limits.