Upward axis
Positive Canthal Tilt
The outer corner sits above the inner corner. The signed degrees are the result.
The outer corner is higher
The line from inner canthus to outer canthus rises toward the ear. In one clinical photographic method, that inclination was measured against a horizontal perpendicular to the facial midline.[1] This tool uses the same idea: a face-relative horizontal, then a signed angle.
An upturned look can also come from the lid or the crease. A positive number does not describe brow height or how much iris is visible.
The label is the small part
+1.2° and +8° can both be called positive, and they are not the same drawing. Above +2° this site shows the positive display band. Inside ±2° it shows near level and still prints the sign.
Camera height, pitch, yaw, roll, and expression can change the apparent angle. The scanner does not invent a correction for a large turn. It asks for another photo.
Scale
Degrees vs the label
The signed number is the measurement. The word is only a display band.
0°
Level reference
+2°
Label starts
+5°
Clearly positive
+8°
Still just a number
+1.2° and +8° are both a positive direction. Only the second crosses this site’s display label. The sign still prints inside the near-level band.
What one study actually measured
Lee, Choung, and Choung measured canthal tilt in 76 Korean patients with a mean age of 23.12 years. In that sample the mean tilt was 8.45° ± 3.53° on the right and 8.42° ± 3.81° on the left. They classed 0° to 5° as class I and more than 5° as class II. No participant in that sample was below 0°.[1]
Those figures describe that group and that photographic method. They are not a normal range for every population, and they are not an ideal angle. This site’s ±2° band is a separate display convention. The landmarks come from MediaPipe Face Landmarker.[2]
The opposite direction is on the negative canthal tilt page.
Measure yours
A level, front-facing photo. Left eye, right eye, and the average.
Use your own photo
Front-facing · Eye-level · Neutral expression · Good lighting
Local processingYour image stays on this device.How privacy worksWhat counts as positive here?
An average above +2° is labeled positive. The signed degrees come first. +1.2° is a positive direction inside the near-level band, not a different kind of eye.
Is there an ideal positive angle?
No. Published averages belong to a stated sample. They are not a target, and this site does not rank angles.
Why do my two eyes disagree?
Faces are not symmetric, and a photo can shift one outer corner more than the other. Read both numbers, not only the average.
References
- 01
Diagnostic analysis of vertical orbital dystopia and canthal tilt for surgical correction
PubMed ↗ - 02
Face landmark detection guide
Documentation ↗