What the score describes
ALYGN extracts facial reference points from a front-facing photo, corrects for head rotation and tilt, and summarizes left-right differences across four areas: eyes, mouth and jaw, midline, and width. A higher total means smaller observed differences in the photo. It is not a score of health, attractiveness, or normality.
What the four areas look at
The eye area compares eye-line tilt, eye height, eye openness, and brow height. Mouth and jaw compares mouth-corner tilt, lip-center and chin deviation, and jawline height. Midline looks at how far the nose sits from the facial center line, and width compares the distance to each cheek.
All of these are position differences in a photo. They do not measure anatomical eye size, vision, muscle strength, bite, or jaw-joint condition.
Area scores and the total
A larger area difference score means a larger left-right difference in that area. The total works the other way: higher means closer to balance. Areas are weighted differently, and different combinations can produce the same total, so the total alone cannot tell which area changed. Read the area scores together with it.
The weighting is an editorial choice. It does not establish that any area is medically more important or more responsive to exercise.
Bands and types are not medical criteria
The balanced, mild, moderate, and notable bands and the eye-type or mouth-and-jaw-type labels are display rules for summarizing the screen. The type shows the area with the largest difference; two similar areas show as mixed, and no notable area shows as balanced. They are not criteria for disease severity or treatment need.
Percentages, millimeters, and direction
Angles display in degrees and ratios as percentages. The approximate millimeters beside a ratio assume an average pupil distance and are not a measurement of your face. Width is not converted to millimeters. Photo-side and personal-side labels can be confused by mirroring, so check the direction note on screen.
Comparison uncertainty and next steps
In multi-frame capture, values vary slightly between frames, so summary metrics may not exactly match the one displayed photo. Light, distance, expression, occlusion, and head angle still affect results. No individual error range or clinical accuracy estimate is provided.
For another comparison, record consistent conditions and avoid assigning a cause to small differences. A higher score is not proof of correction. Pain, jaw locking, and sudden facial movement changes need medical attention separately from the score.
