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Multi-Focal design vs Monovision

A study was conducted at The Ohio State University College of Optometry to compare the Bausch + Lomb SofLens Multi-Focal lens (which utilizes the same design as PureVision Multi-Focal contact lenses) with a traditional monovision correction.

Final preference and follow-up survey results (responses recorded 6 months to 1 year after completion of the study) are shown below.

The key findings of this study include:

  • Three out of four of the surveyed patients reported that they preferred multifocal to monovision.
  • Three times more multifocal patients than monovision patients were still wearing their lenses at least three days a week 6-12 months after completing the study.
  • None of the monovision patients considered contact lenses to be their preferred form of vision correction.


These results show that there is a clear preference for the proven Bausch + Lomb Multifocal lens design platform versus traditional monovision correction. However, as lens designers can attest, adapting a successful optical design to a new lens material is rarely a straightforward process.