Retinal Screening Assistant
Support ophthalmology screening services by detecting referable diabetic retinopathy in colour fundus images and prioritising cases for specialist review.
- Status
- In operation
- State
- Deployed
- Owner
- Cirocco Jones
- Record completeness
- 0
100, less 12 for each open blocker and 4 for each warning. It measures the record, not the performance of the AI System.
The system is in operation while its record stands below the floor of 70. That contradiction is raised as blocker STATE-01.
- Blockers
- 14
Basic UDI-DI
Assigned once per device. It moves only when the device becomes a different device.
UDI-DI and UDI-PI
One UDI-DI per released version. The UDI-PI is the version number and carries no registration of its own.
| UDI-DI | UDI-PI | Carrier | Registration | Registered | Change | |
|---|---|---|---|---|---|---|
| (01)05412345000034 | 4.2.0 | Plain text on screen | Registered | 2026-02-04 | Retrained on an extended dataset version. Sensitivity and specificity both changed, so a new UDI-DI was assigned. | |
| (01)05412345000027 | 4.0.0 | Plain text on screen | Superseded | 2025-02-20 | First market release of the screening classifier. | |
| (01)05412345000041 | 4.3.0 | Plain text on screen | Not registered | Not recorded | Threshold recalibration for the northern sites. Performance changes, so registration is required before release. |
Evaluate a change
State what the change affects. The answer decides which identifier moves.
No effect is declared, so no identifier moves. Declare the effects to evaluate.
No identifier moves. The change is recorded in the audit trail only.
Recorded evaluations
Every change evaluation is kept.
| Date | Change | Outcome | Decided by | Reasoning |
|---|---|---|---|---|
| 2026-05-12 | Release 4.2.1, image loader defect | New UDI-PI only | Bron Helstrom | A defect correction with no effect on safety, performance or the interpretation of data. Only the version number moves. |
| 2026-01-28 | Release 4.2.0, retraining on DV-003 | New UDI-DI | Bron Helstrom | The change affects performance, so a new UDI-DI is assigned and registered; the previous one is superseded. |