Zone Varifocals

Caledonian Optical's Freeform HD lenses are available in a number of ranges:

 

Basic Range


Manufactured using basic prescription data


Similar to existing conventional front-sided progressives


Designs match wearer’s prescription more accurately


Multiple corridor length options for improved fit based on frame


Comprehensive choice of materials


Advanced Range


Personalised lens power, designed specifically for each patient’s prescription


Every point on the lens is recalculated, compensating the user’s eye movement


Choice of designs to correspond to patient’s lifestyle


Multiple corridor lengths available for improved fit based on frame


Comprehensive choice of materials


Choice of designs to correspond to patient’s lifestyle


Incorporates User Power Optimisation


Ultimate Range


Greater personalisation through further measurement and adjustment to wearer’s pantoscopic and wrapping angles, vertex distance and viewing angles


Every point on the lens is recalculated, compensating the user’s eye movement


Choice of designs to correspond to patient’s lifestyle


Improved viewable regions of each design


Lens customisation according to patient’s frame and lifestyle


Incorporates User Power Optimisation


Measurements become critical with wrap frames and higher dioptre prescriptions