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.

Contact lens prescription calculator (OptiExpert)

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

Efron grading scales

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

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