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Correction of Presbyopia by Monocular Bi-Aspheric Ablation Profile
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Accommodative functions with multifocal contact lenses: a pilot study.

Robert Montés-Micó1, David Madrid-Costa, Hema Radhakrishnan

  • 1Optometry Research Group (GIO), Optics Department, University of Valencia, Spain, Valencia, Spain. robert.montes@uv.es

Optometry and Vision Science : Official Publication of the American Academy of Optometry
|May 10, 2011
PubMed
Summary

Simultaneous-image multifocal contact lenses did not change accommodative functions in presbyopic patients. However, a high-addition multifocal lens improved near vision for those with advanced presbyopia.

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Area of Science:

  • Ophthalmology
  • Optometry
  • Vision Science

Background:

  • Presbyopia, an age-related condition, affects near vision.
  • Multifocal contact lenses (CLs) are used to correct presbyopia.
  • Understanding accommodative response with these lenses is crucial.

Purpose of the Study:

  • To evaluate accommodative response and facility in presbyopic patients.
  • To compare different types of simultaneous-image multifocal CLs.

Main Methods:

  • Six presbyopic patients and eight non-presbyopes were studied.
  • Patients were fitted with three types of simultaneous vision multifocal CLs.
  • Accommodative response, facility, visual acuity, and contrast sensitivity were measured.

Main Results:

  • No significant difference in distance visual acuity with CLs compared to baseline.
  • Near visual acuity was similar with Focus Progressives and PureVision Low Add CLs.
  • PureVision High Add CLs showed a slight improvement in near visual acuity for presbyopes.

Conclusions:

  • Simultaneous-image multifocal CLs do not appear to alter accommodative functions.
  • High-addition multifocal CLs may benefit advanced presbyopes by enhancing near vision.