Hooded eyes happen when the skin from the brow bone folds over the eyelid crease, partially or fully hiding it from view. Some people are born with this eye shape, while others develop it gradually as they age. The causes range from simple genetics to structural changes in the skin, and in rarer cases, underlying medical conditions.
How Hooded Eyes Differ From Other Eye Shapes
The defining feature of a hooded eye is an upper eyelid crease that isn’t visible. Instead, a fold of skin drapes over it, sometimes extending from the brow bone down to the lash line. This is a normal anatomical variation, not a medical problem. Millions of people have naturally hooded eyes from birth, and the trait runs in families across all ethnicities.
It’s worth understanding the difference between hooded eyes and a condition called ptosis. Hooded eyes involve excess skin (sometimes called dermatochalasis) that hangs over the natural crease. The muscles that lift the eyelid work perfectly fine. Ptosis, on the other hand, is an actual drooping of the eyelid margin, the edge where your eyelashes sit. It’s caused by weakness or dysfunction of the muscle that lifts the lid, or by loosening of the tendon connecting that muscle to the eyelid. The distinction matters: hooded eyes are a skin issue, while ptosis is a muscle or tendon issue. If your skin is drooping over the crease, that’s hooding. If your lash line itself sits lower than it should, that’s ptosis, and it may need a different kind of evaluation.
Genetics: The Most Common Cause
The shape of your brow bone, the amount of fat padding around your eye socket, and how much skin naturally sits on your upper eyelid are all inherited traits. If one or both of your parents have hooded eyes, you’re more likely to have them too. In these cases, hooding is present from a young age and stays relatively consistent throughout early adulthood. It’s simply part of your facial structure, shaped by the depth of your eye socket and the positioning of your brow.
How Aging Changes Your Eyelids
Even people who didn’t start with hooded eyes can develop them over time. The eyelid has some of the thinnest skin on the entire body, and it’s uniquely vulnerable to age-related changes.
The key players are elastic fibers, the structures that let skin snap back into place. These fibers are built from a soluble protein that gets cross-linked into insoluble, durable strands. Research published in Skin Health and Disease found that eyelid skin has a more complex fibrous structure than skin elsewhere on the body, like the abdomen. With age, these fibers become curved, shortened, and thickened, losing their ability to maintain tension. The result is skin that gradually stretches and sags, folding over the eyelid crease.
Collagen loss compounds the problem. As the structural scaffolding of the skin weakens decade by decade, gravity pulls the loosened skin downward. The brow itself can also descend with age, pushing more tissue onto the upper lid. What starts as a subtle change in your 30s or 40s can become pronounced enough by your 50s or 60s to partially obstruct your peripheral vision.
Temporary Causes: Allergies, Salt, and Sleep
Some hooding isn’t permanent. It fluctuates based on what’s happening in your body day to day. Fluid retention around the eyes can make existing hooding look worse or create the appearance of hooding where there normally isn’t much.
High salt intake is one of the most common culprits. Eating a salty meal the night before can increase blood flow and fluid leakage around the eyes, producing puffiness that’s noticeably worse in the morning. Sleeping position plays a role too: spending hours in a reclined posture allows fluid to pool around the eye area overnight, which is why your lids can look heavier first thing in the morning and improve as the day goes on.
Allergies deserve special attention. Seasonal allergies, contact dermatitis, and food sensitivities (common triggers include eggs, milk, peanuts, soy, and wheat) all produce swelling of the thin eyelid skin. A single allergic episode causes temporary puffiness, but repeated, chronic, low-grade allergen exposure can lead to prolonged skin thickening. Over time, this can make hooding more noticeable even when you’re not actively having an allergic reaction.
Medical Conditions That Affect the Eyelids
Thyroid eye disease is an autoimmune condition most often associated with Graves’ disease. Roughly 15% to 30% of people with Graves’ disease develop clinically significant eye involvement. While thyroid eye disease more commonly causes eyelid retraction (where the lid pulls upward, showing too much of the eye), the inflammation and tissue changes it triggers can also alter eyelid appearance in complex ways. The disease can enlarge the muscle that lifts the eyelid, cause inflammation and scarring in the smaller muscles of the lid, and even weaken the muscle that closes the eye. These competing forces can produce asymmetric or unpredictable changes to how the upper lid sits.
Other medical causes of eyelid changes include neurological conditions that weaken the lid-lifting muscle, prior eye surgery or trauma, and chronic inflammatory skin conditions affecting the eyelid area. If hooding appears suddenly, affects one eye more than the other, or comes with changes in vision, it’s worth having a medical evaluation to rule out something beyond normal anatomy or aging.
Options for Reducing Hooded Eyes
For temporary, fluid-related hooding, the fixes are straightforward: reducing salt intake, managing allergies, sleeping with your head slightly elevated, and applying cool compresses in the morning can all minimize puffiness.
For mild to moderate hooding caused by aging or genetics, injectable treatments offer a nonsurgical approach. A technique sometimes called a “Botox brow lift” works by strategically relaxing the muscles that pull the eyebrows and upper lids downward while allowing the muscles that lift them to work unopposed. Small doses injected at the outer edges of the eyebrows produce subtle changes, though additional injection sites can create a more noticeable lift. The effect is temporary, typically lasting a few months before repeat treatment is needed.
Upper blepharoplasty is the surgical option, and it’s one of the most commonly performed cosmetic procedures in the United States. In 2024, more than 120,000 eyelid surgeries were performed according to the American Society of Plastic Surgeons. The procedure removes excess skin from the upper lid, and sometimes a small amount of fat, to restore a visible eyelid crease. Recovery typically involves bruising and swelling for one to two weeks. When hooding is severe enough to block peripheral vision, the surgery may be covered by insurance after a visual field test documents the obstruction.
For people whose concern is purely cosmetic, makeup techniques like strategic eyeshadow placement and eyelid tape can create the appearance of a more visible crease without any medical intervention. These approaches work best for mild hooding and are a common starting point before considering procedures.