Droopy Eyelid Causes: Sagging Upper Eyelids Explained

Droopy eyelid meaning, the three causes of a sagging upper eyelid

The upper eyelid is lifted by the levator muscle, which pulls on a thin tendon (the aponeurosis) attached to the tarsal plate inside the lid. Above it sits the brow, and over the whole structure lies the thinnest skin on the body. “Sagging eyelids“, “droopy eyelids”, “hooded eyes” and “heavy eyelids” are all used for the same complaint, but the complaint has three separate anatomical causes and they often occur together in the same patient. Treatment for each is on the sagging eyelids treatment Singapore page.

Ptosis (weak levator muscle)

Ptosis (pronounced “toe-sis”) is a lid margin that sits too low on the eye. The skin may be perfectly tight, because the problem is that the lid itself is not being lifted. In adults the usual cause is a stretched or detached levator aponeurosis, called aponeurotic or involutional ptosis.

• Ageing. The aponeurosis thins and stretches, so the muscle pulls but the lid does not follow.
• Contact-lens wear. Decades of pulling the lid up to insert and remove lenses, especially rigid lenses, is a recognised cause of ptosis in people in their thirties and forties.
• Eye rubbing. Chronic rubbing from allergy or habit stretches the aponeurosis in the same way.
• After eye surgery. Cataract, LASIK and other procedures that use a lid speculum can leave a mild ptosis.
• Congenital. A poorly developed levator from birth, usually noticed in childhood.
• Medical causes. Thyroid eye disease (which more often causes lid retraction but can cause ptosis in the burnt-out phase), myasthenia gravis (ptosis that worsens through the day), third-nerve palsy and Horner’s syndrome. These need an ophthalmologist or neurologist, not an aesthetic clinic.

Ptosis is a muscle and tendon problem, so skin removal does not correct it and radiofrequency cannot lift it. It needs ptosis repair surgery.

How to tell which droopy eyelid cause you have

The three checks below are done in a mirror in good light, face relaxed, looking straight ahead.

1. Brow lift test. Place a finger on the eyebrow and lift it gently to the bony rim.
– Hooding that disappears means brow ptosis is a major part of the problem.
– A skin fold that is smaller but still present means dermatochalasis.
– A lid edge that is still low on the eye means ptosis.

2. Lid edge position. With the brow held so it is not compensating, look where the upper lid edge crosses the coloured iris. Normally it covers the top 1-2 mm of the iris. If it covers more, or approaches or crosses the pupil, that is ptosis, however tight the skin.

3. Skin fold test. Pinch the loose skin of the upper lid between two fingers and lift it away from the eye. If the skin fold was what covered the lashes and the lid edge is now clearly in the right place, the cause is dermatochalasis.

Extra clues. Ptosis is often asymmetric and worse when tired. Dermatochalasis is usually symmetric and worse in the outer half. Brow ptosis comes with forehead lines and a habit of raising the eyebrows. Many people over 50 have all three.

What makes droopy eyelids worse

• Eye rubbing from allergy, eczema, dry eye or habit stretches both the skin and the levator tendon.
• Contact lenses, particularly rigid lenses and decades of wear.
• Sun on the thin eyelid skin without sunglasses.
• Smoking.
• Chronic lid swelling from allergy, sinus disease, salt, alcohol or sleeping face-down.
• Weight fluctuation.
• Forehead Botox placed without accounting for a brow that was already compensating.
• Heavy eye make-up removal with daily tugging at the lid.

Frequently asked questions

Can sagging eyelids be fixed without surgery?
Mild excess skin can be tightened by needle or mono-polar radiofrequency or HIFU, and a dropped brow can be lifted slightly with Botox. Ptosis, where the lid edge itself sits low, cannot be corrected without surgery.

Do contact lenses cause droopy eyelids?
Yes. Long-term wear, especially of rigid lenses, stretches the levator tendon through years of lid manipulation and is a recognised cause of ptosis in adults under 50.

Is a droopy eyelid a sign of something serious?
Usually not, but a sudden droop, a droop on one side, or one that comes with double vision, an unequal pupil or weakness elsewhere needs prompt medical review to exclude nerve or muscle disease.

Is eyelid surgery for sagging eyelids covered by insurance in Singapore?
Only when the lid demonstrably blocks the upper field of vision on testing. Surgery done for appearance is cosmetic and not claimable from MediSave or insurance.

Why does my eyelid droop more at the end of the day?
Fatigue of a stretched levator muscle makes aponeurotic ptosis worse in the evening. A droop that varies markedly through the day, however, can also be a sign of myasthenia gravis and should be checked.

General information, not medical advice. A registered medical practitioner should be consulted before any treatment. Dark Eye Circles Singapore does not sell treatments and is not a clinic.