A positive canthal tilt means the outer corner of your eye sits higher than the inner corner. If you drew a line from the inner corner to the outer corner, it would angle slightly upward. This upward slant is widely considered one of the more attractive eye shapes, and it’s a feature that can change naturally with age.
How Canthal Tilt Is Measured
Your eye has two “canthi,” which are simply the corners where your upper and lower eyelids meet. The inner corner, near your nose, is the medial canthus. The outer corner, near your temple, is the lateral canthus. Canthal tilt is the angle of the line connecting these two points relative to a horizontal line.
Clinicians classify canthal tilt into three categories. A tilt between 0° and 5° is considered Class I, meaning the outer corner is only slightly higher than the inner corner. A tilt greater than 5° is Class II, with a more noticeable upward angle. A tilt below 0°, where the outer corner drops lower than the inner corner, is Class III, or a negative canthal tilt. Most people fall somewhere in the 0° to 5° range, with the average Caucasian face measuring around 4.12°.
How to Check Your Own Canthal Tilt
You can estimate your canthal tilt with a straight-on photo taken at eye level. Look at the inner and outer corners of each eye. If the outer corner is visibly higher than the inner corner, you have a positive tilt. If they’re roughly level, your tilt is neutral. If the outer corner droops below the inner corner, that’s a negative tilt.
For a more precise measurement, you can use a digital protractor tool on a photo. Identify both corners of one eye, draw a line between them, then compare that line’s angle to a perfectly horizontal reference line through the inner corner. The angle between those two lines is your canthal tilt in degrees.
Gender Differences in Canthal Tilt
Women tend to have a steeper positive canthal tilt than men. A study of 42 Caucasian celebrities published in Aesthetic Surgery Journal found that women averaged 8.50° compared to 6.51° in men. Both figures are well above the 4.12° average in the general population, which supports the idea that a more pronounced positive tilt is associated with faces people find attractive regardless of gender. The roughly 2° difference between men and women, though, is meaningful. A steeper tilt in women may emphasize femininity and youthfulness, while a slightly less steep (but still positive) tilt in men tends to look more conventionally masculine.
Why Positive Tilt Is Considered Attractive
A positive canthal tilt creates what’s often described as an alert, sharp gaze. In online aesthetics communities, eyes with a strong positive tilt and minimal visible white below the iris are called “hunter eyes,” a term for an intense, forward-set eye shape associated with confidence and dominance. The upward angle gives the eyes a lifted, well-rested look.
A negative tilt, by contrast, can make the eyes appear to droop at the outer corners. This often reads as tired or sad, even when the person feels neither. It’s one reason people sometimes look more fatigued as they age, since the tilt tends to flatten or reverse over time. A neutral tilt, where the corners are perfectly level, can also be attractive. It tends to make eyes look larger and more open, a quality associated with youthfulness.
Part of the preference for a positive tilt in women may come down to biology. The angle of the eye opening is slightly greater in women than in men, and greater in children than in adults. A more pronounced positive tilt visually mimics both of those traits, signaling youth and femininity at the same time.
How Aging Affects Canthal Tilt
The outer corner of your eye is held in place by the lateral canthal tendon, which anchors it to the bone of the eye socket. In a youthful face, this tendon keeps the outer corner about 2mm higher than the inner corner. Over time, this tendon stretches and weakens. The surrounding muscles lose tone, and the skin and connective tissue become lax. The result is that the outer corner gradually drifts downward, reducing or even reversing a once-positive tilt.
This descent is one of the subtler signs of aging. It changes the overall shape of the eye from an upswept almond to something rounder and less defined. For many people, this shift contributes more to an “aged” appearance than wrinkles alone.
Surgical Options for Changing Canthal Tilt
Two main procedures can adjust the position of the outer eye corner. A canthoplasty is a more involved surgery that reconstructs the eyelid by tightening or repositioning the muscles, tendons, and ligaments at the outer corner. It can correct a negative tilt, restore a positive one lost to aging, or reduce an overly steep tilt. A lateral canthoplasty specifically targets the outer corner of the eye near the temple.
A canthopexy is a lighter procedure that tightens the outer corner of the lower eyelid without cutting or reattaching the existing tendon. It’s better suited for mild laxity rather than significant repositioning. Both procedures are commonly performed alongside lower eyelid surgery to maintain eye shape during recovery.
There’s also an epicanthoplasty, which addresses the inner corner of the eye near the nose. This doesn’t directly change the tilt angle, but by reshaping the inner corner, it can alter the visual impression of the tilt.