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Superior Contrast Sensitivity in Low Light Conditions

Nominal eye with spherical monofocal IOL. Retinal Image corresponding to 20/40 at 5 mm pupil (best focus at 3 mm)

Monofocal
Multifocal

Nominal eye with OptiVis™. Retinal Image corresponding to 20/40 at 5 mm pupil (best focus at 3 mm)

OptiVis™ offers the following features to help ensure predictable contrast sensitivity in low light conditions:

  • The unique bi-sign aspherization of OptiVis™ creates positive and negative ocular aberrations at large pupil diameters to not only balance out corneal aberrations, but also to compensate for ocular aberrations within the lens itself. This leads to superior image quality even with lens decentration and tilt.
  • OptiVis™ apodization increases Far image dominance with increasing pupil size to improve Far image contrast sensitivity in low light conditions.
  • With OptiVis™, only a small percentage of light falls outside of the range of vision.
OptiVis Box

Reduction of Dysphotopia (Halos)

Retinal Image of far bright object with halo in the eye with prior multifocal IOL design (simulation)

Monofocal
Multifocal

Retinal Image of far bright object in the eye with OptiVis™ results in minimized halo (simulation)








Several of OptiVis™ design features also reduce Dysphotopsia:

  • Unique apodization to minimize halo size. (The area of the lens that passes most of the light to Near focus is located close to the center of the optic.)
  • Bi-sign aspherization to maximize Far contrast, even with lens misalignment.
  • Small percentage of light falls outside of the range of vision.