OSaaT Web App

Register for the OSaaT App

A purpose-built platform for ophthalmic technicians screening children at scale. Lightweight, accurate and ready for the field.

OSaaT app screenshot

Designed for the field Engineered for scale

Fast screenings

Complete a child's visual acuity test in under two minutes.

Accurate results

Calibrated tumbling-E test with eye-by-eye precision.

Offline capable

Run full screening sessions without an internet connection.

Secure records

Encrypted local storage and authenticated cloud sync.

Cloud reporting

Real-time program dashboards and exportable evidence.

Lightweight install

Optimised APK that runs on entry-level Android devices.