The I-Kone™ is a corneal gas permeable design for keratoconus with anterior and posterior aspheric surfaces.  The posterior surface offers 4 zones intended to better conform to the shape of the keratoconic cornea.  The design offers the ability to adjust any of the 4 zones to closely contour the cornea and provide optimum edge lift.

The I-Kone™ offers 3 designs:

Standard Design offers a central steep zone and is great for mild to advanced keratoconus patients.

Globus Design offers a larger sagittal depth and is ideal for patients who have ectasia covering most of the cornea.

Pellucid/PKP Design is an adjustable reverse geometry that is great for patients who have peripheral ectasia or post corneal transplant.

Fitting Set

The I-Kone™ features are designed to provide:

  • Bi-surface Aspheric Design intended to eliminate aberrations
  • Enhanced Alignment fit
  • Improved comfort and centration
  • Larger optic zone for improved vision and reduced glare
  • 90 day unlimited exchange risk free warranty
Base Curves 3.94 to 8.65 mm
Diameters 8.8 to 11.8 mm
(9.6 mm, 10.4 mm, 11.0 mm standard)
Sphere Power -0.25 to -15.0 D in 0.25 D steps
  • Keratoconus or other cases of central corneal ectasia consequent to corneal graft, PRK, LASIK or trauma.
  • When alternative GP designs will not center or cause intolerable bearing forces on the central cornea.
  • 14 pre-designed lenses in 9.6 mm Diameter
  • 13 pre-designed lenses in 10.4 mm Diameter
  • Loaner Sets are available
Base Curves: 44.0 to 70.00 mm [in 2 D steps]
Typical range for peripheral curves (PC1): 6.4 to 7.8 mm
Typical range for Sphere Power: -6.0 D to -17.0 D

More Information


Our Visionary Optics consultation team can make even the most challenging fits possible and is here to assist. Call, email or complete the online ordering form and we can design the best custom lens for your patient.