Pin on Tattoo Ideas. Negative canthal tilt is just the reverse of positive canthal tilt. We can measure it the same way.
N egative canthal tilt is usually caused by aging, swollen eyelids, and sagging. It is possible to surgically change this. The eye canthal tilt is the angle between the internal corner of the eyes (medial canthus) and the external corner of the eyes (lateral canthus).
