Free optical tools for everyday practice
A growing collection of practical digital tools designed to support optical professionals with lens selection, prism calculations and everyday dispensing tasks.
Lens Finder
Search ophthalmic lens ranges by prescription, lens type, refractive index, treatment and other lens properties.
Prism Toolkit
Calculate induced prism, decentration, resultant prism, prism splitting, vertical imbalance and slab-off.
Rx Toolkit
Calculate transposition, spherical equivalent, principal meridians, vertex distance and vertical imbalance.
More tools are on the way
We’re developing further free tools to support prescription calculations, dispensing and ophthalmic lens selection.
All feedback is welcome about our current tools, as well as things you’d like to see us develop.
You can contact us via info@insight-optical.co.uk