Free optical tools for everyday practice

A growing collection of practical digital tools designed to support optical professionals with lens selection, prescription calculations, frame suitability, prism calculations, acute eye triage and everyday dispensing tasks. Looking to develop your knowledge alongside these tools? Explore our optical training qualifications.

Lens Finder

Lens Finder optical lens selection search tool

Search ophthalmic lens ranges by prescription, lens type, refractive index, treatment and other lens properties.

Prism Toolkit

Prism Toolkit prescription and prism calculation tool

Calculate induced prism, decentration, resultant prism, prism splitting, vertical imbalance and slab-off.

Rx Toolkit

Insight Rx Toolkit prescription calculation interface

Calculate transposition, spherical equivalent, principal meridians, vertex distance and vertical imbalance.

Frame/Rx Suitability & Cut-out Tool

Frame and prescription suitability and lens cut-out assessment tool

Assess frame geometry, cut-out requirements and prescription-related dispensing considerations before lens ordering.

Acute Eye Problem – Triage Tool

Illustration introducing the acute eye problem triage tool

Guide trained optical practice staff through acute eye-problem triage, with escalation prompts, clinician review and a printable or shareable summary.

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