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Assessing the Design of PureVision Multi-focal vs. Monovision

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PureVision Multifocal lenses

  • Wide-intermediate power profile delivers outstanding vision in the 16- to 48-inch range
  • Independence from reading glasses
  • Long-term solution - patients can keep same modality as ADD needs increase
  • Maintains binocularity, improves depth perception and visual outcomes
  • Center-near aspheric design enables natural transitions near to far

Monovision

  • Compromised intermediate vision
  • Occasional reliance on spectacles for mid-range vision (sports, computer work)
  • Short-term correction - refits required as distance and ADD disparity increases
  • Diminished binocularity, depth perception, and night vision
  • Uses non-dominant eye for near and dominant eye for distance