You want to deliver the best fit, comfort and visual acuity to all your patients who wear contact lenses. We’re here to help.

The tools and contact lens calculators below* are designed to help you maximise fitting effectiveness, patient care and practice efficiency.

Spectacle conversion calculator

Easily convert a patient’s prescription for glasses to the corresponding contact lens parameters.

Toric calculator

Get the calculated theoretical power plus our recommendation for CooperVision toric lenses with specific parameters.

Efron grading scales

A standard clinical reference that helps quantify 16 contact lens wear-related anterior eye conditions.

* The calculators are designed to help eye care practitioners and are not a substitute for a professional contact lens fitting by a qualified eye care practitioner.