What is eye alertness?

Eye alertness measures the angle between inner and outer eye corners — the same canthal tilt idea used in human PSL, adapted for DogFLW landmarks.

Dogs with level, engaged eyes tend to score higher than droopy or asymmetric corners. Breed matters: some breeds naturally have different baseline tilts, so treat sub-scores as fun calibration, not judgment.

Good lighting helps the landmark model. Run Camera Check first if your score looks off.