The canthal tilt is the angle of the lateral canthus (outside corner of eye) in relation to the medial canthus (inside corner of eye). A positive canthal tilt means the lateral canthus is higher on the face in proportion to the medial canthus, whereas a negative canthal tilt means the lateral canthus is lower on the face than the medial canthus. Some sluthaters claim that a negative canthal tilt is an extremely unattractive feature on men. They argue that it looks droopy and unintimidating.
For females, a positive canthal tilt is ideal because it symbolizes youth. For males, however, canthal tilt matters less. There are men who are attractive despite a negative canthal tilt, such as Adrien Brody, Aubrey Graham, Adam Gallagher and André Hamann.