GP Products

Spherical, Standard & Custom

Keratoconus Lens Design 

(Spherical Parameters)

Parameters:                          Range

Power:                                    -20.00 D to +20.00 D

Overall Diameter:                  Up to 11.5 mm

Base Curve Radius:              4.00 mm to 9.00 mm 

Optic Zone:                            5.0 mm to 9.00 mm 

Peripheral Curves:                Series of spherical curves progressively flatter than the base curve