The patient picks between two frames on their own face. The winner stays, a new frame challenges it, and the practice learns which styles win for each face shape.
Photos stay on this device only and are cleared with New patient. The practice data saves frame IDs and wins, never faces.
Mark both pupils, set the PD, pick the face shape, then press Start duel. Hand the screen to the patient and let them tap the frame they'd rather wear.
Tap the face or the button. Left and right arrow keys work too. Sides are shuffled every round.
Spouse, parent or friend in the room? Let them pick between these two. It counts as half a vote.
Before ordering: check bridge fit, eye size against the Rx, and lens thickness for high prescriptions.
Use a straight-on product photo with the background removed (PNG). Enter the size printed on the temple, like 52-18-140, so it scales to real size on the face.
| Frame | Shown | Wins | Win rate | Score | Status |
|---|
Score is the loop's current belief (wins +1, losses −1, second opinions ±0.5). Status needs at least 5 showings. "Never picked" frames are candidates to stop reordering.