Positive vs Negative Canthal Tilt

One eye line, three directions. Drag from −10° to +10°. The outer corner, the signed angle, and the direction all update together.

Quick measureOn this device

Measured on this device. Your photo is not uploaded.

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Interactive comparison

Eye diagram at +4.0°, positive canthal tiltSUBJECT RIGHTSUBJECT LEFT

+4.0°

positive

Outer eye corner sits higher than the inner corner.

-8.0°Negative canthal tilt diagram

Negative

Outer corner below the inner corner. Below −2° in the display band.

0.0°Near-level canthal tilt diagram

Near level

Corners close to the reference. −2° through +2°, with the sign still shown.

+8.0°Positive canthal tilt diagram

Positive

Outer corner above the inner corner. Above +2° in the display band.

Geometry only

FeaturePositiveNear levelNegative
Outer cornerHigher than the inner cornerClose to the inner corner’s heightLower than the inner corner
Signed angleGreater than 0°Either sign, small magnitudeLess than 0°
Display band on this siteAbove +2°−2° through +2°Below −2°
What it does not sayNot a target angleNot a perfect faceNot a health or character finding

Read the direction pages for positive, negative, and near level. The manual steps are on how to measure.