At a glance
- Term
- Canthal tilt
- Area
- Face geometry
- Measurable from a selfie
- Yes: angle between the inner and outer eye corners on each side
- Evidence
- Established
- Related
- Hunter eyes, Prey eyes, Facial symmetry, Upper eyelid exposure
Positive, neutral and negative describe direction
The labels tell you which way the line between your eye corners slopes. Positive means upward toward the outer corner; negative means downward. Neutral means the corners sit level.
These words describe an angle, not a grade. A positive canthal tilt doesn't come with an instruction to change your face. Keep the measurement separate from any judgment you attach to it.
How to measure canthal tilt from a selfie
Measure each eye separately against a level horizontal reference. You're checking the eye corners, rather than tracing the curve of your upper or lower eyelid.
- Choose a front-facing selfie with your head upright and both eye corners clearly visible.
- Mark the inner corner and outer corner of the same eye.
- Draw a straight line between those marks and measure its angle against horizontal.
- Repeat for the other eye, keeping the results separate.
Check head position before interpreting a difference. A tilted head changes how those lines sit against the photo's horizontal edge.
Established anatomy isn't a beauty target
The evidence status is established for the anatomical feature. That doesn't make every online claim about an ideal eye angle established too.
Canthal angle describes the position of your eye corners. It doesn't measure upper eyelid exposure or replace a comparison of facial symmetry. Treat those as separate questions rather than folding them into a single score.
Use a report only for what it measures
The free face-symmetry scan reads landmark distances from one selfie and reports left-right differences and basic ratios. It names what it measured. Don't assume a result includes an eye-corner angle unless the report says so.
Use the number to describe the photo, without treating it as a reason for treatment. The glossary separates named measurements from broader appearance labels.
Questions people ask
- Can a selfie measure canthal tilt?
- Yes. You can measure the angle between the inner and outer eye corners on each side. The result describes that photo, so check head position and your corner marks before trusting it.
- Should I combine the angles from both eyes?
- Keep each side's result available. A combined number hides the left-right difference you were trying to check.
- Does positive canthal tilt mean hunter eyes?
- Canthal tilt names a specific angle. Hunter eyes and prey eyes are broader appearance labels, so don't treat either as a substitute for that measurement.
Written from the measurements and ingredient facts on this site, then checked for the usual mistakes. Not medical advice.
Related pages
The closest pages in this section, picked by topic rather than by date.
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