What is canthal tilt?
The angle of the line from the inner to the outer corner of the eye, and what a positive or negative tilt does to how the eyes read.
By Faciem research · 2026-09-08 · 4 min read
Definition
Canthal tilt is the angle between the horizontal and the line connecting the medial canthus (inner corner) and the lateral canthus (outer corner) of the eye. A positive tilt means the outer corner sits higher.
Normal range
Most adults sit between −2° and +6°. A slightly positive tilt is read as alert and youthful; a strongly negative tilt can read as tired.
Example: 61st percentile within the comparison group.
What changes it
Very little, permanently. Brow position and under-eye swelling change the apparent tilt, which is what people see. Both are addressable at home.
measurements · 4 min read
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The angle at the corner of the jaw, how it is measured on a profile photo, and what it does to jaw definition.
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