Ptosis (Drooping Eyelid)

What Is Ptosis?

Ptosis (pronounced TOE-sis) is a drooping of the upper eyelid that occurs when the muscle responsible for lifting the lid — the levator muscle — becomes weakened, stretched, or fails to develop properly. The drooping can range from barely noticeable to severe enough to cover the pupil and obstruct vision. One or both eyelids may be affected.

Ptosis is not the same as excess skin on the upper eyelid, though the two conditions often occur together. Excess skin (dermatochalasis) is addressed with blepharoplasty, while ptosis specifically involves the muscle or tendon that lifts the eyelid. In many patients, Dr. Brent Bellotte at West Boca Eye Center performs ptosis repair and blepharoplasty together for the most complete functional and cosmetic result.

Types of Ptosis

Congenital Ptosis

Congenital ptosis is present at birth and results from a poorly developed levator muscle. The muscle fibers may be replaced by fibrous or fatty tissue that cannot contract effectively. Congenital ptosis typically affects one eye but can occur in both. If the drooping lid covers the pupil, it can block visual input during critical developmental years and lead to amblyopia (lazy eye) — a condition where the brain favors the unaffected eye and vision in the ptotic eye never fully develops. Early detection and treatment are essential to prevent permanent visual impairment.

Acquired Ptosis

Acquired ptosis develops later in life and has several possible causes:

• Aponeurotic ptosis (age-related) — the most common form in adults; the levator tendon (aponeurosis) stretches and thins over time, weakening its attachment to the eyelid. This is the typical "aging eyelid" ptosis
• Neurogenic ptosis — caused by a problem with the nerve signals to the levator muscle, as seen in conditions like third nerve palsy, Horner syndrome, or myasthenia gravis
• Myogenic ptosis — caused by diseases affecting the muscle itself, such as muscular dystrophy or chronic progressive external ophthalmoplegia
• Mechanical ptosis — caused by the weight of a mass, tumor, swelling, or excess tissue on the eyelid that physically pulls it down
• Traumatic ptosis — resulting from an injury to the eyelid or the levator muscle/tendon

If ptosis develops suddenly — especially if accompanied by a severe headache, double vision, or a dilated pupil — seek emergency medical attention immediately. Sudden-onset ptosis can be a sign of a brain aneurysm or stroke.

Symptoms of Ptosis

The primary symptom is a visibly drooping upper eyelid. Depending on the severity, ptosis may also cause:

• Reduced upper visual field — difficulty seeing objects above eye level without tilting the head back
• A tired or asymmetric appearance — one eye may appear noticeably smaller than the other
• Chin-up head posture — a compensatory habit to see beneath the drooping lid, which can lead to neck and shoulder strain over time
• Eyebrow elevation — unconsciously raising the eyebrow on the affected side to lift the lid
• Eye fatigue — from the effort of holding the lid open or compensating with head position
• Difficulty reading or driving — particularly in advanced cases where the lid covers the pupil

In children with congenital ptosis, parents may notice the child tilting their head back, raising their chin, or using their fingers to lift the eyelid. These compensatory behaviors are important early warning signs.

Diagnosis

At West Boca Eye Center, ptosis diagnosis begins with a comprehensive eye examination that includes:

• Margin reflex distance (MRD) measurement — the distance from the center of the pupil to the upper eyelid margin, which quantifies the degree of drooping
• Levator function testing — measures how many millimeters the eyelid travels from full downgaze to full upgaze, indicating how well the levator muscle is functioning
• Visual field testing — documents any obstruction of the upper visual field caused by the drooping lid; this is also required for insurance documentation if surgery is being considered
• External photography — before-and-after photos document the degree of ptosis and the surgical outcome

If a neurological cause is suspected, additional testing may include blood work, brain imaging (MRI or CT scan), or referral to a neurologist. For cases where myasthenia gravis is a possibility, specific antibody testing and an ice test or Tensilon test may be performed.

Treatment Options

Observation and Non-Surgical Options

Mild ptosis that does not obstruct vision may be monitored without immediate treatment. Non-surgical options include:

• Ptosis crutch — a small device attached to the frame of eyeglasses that holds the upper eyelid in a raised position; useful for patients who are not candidates for surgery
• Treating the underlying condition — if ptosis is caused by a neurological or muscular disease, treating the primary condition may improve the lid position

Ptosis Surgery

Surgery is the definitive treatment for ptosis and is recommended when the drooping lid obstructs vision or when the condition significantly affects appearance and quality of life. The specific surgical technique depends on the severity of the ptosis and how well the levator muscle functions:

• Levator advancement or resection — the most common approach for acquired ptosis with fair to good levator function; the levator muscle or its tendon is shortened and reattached at a higher position to lift the eyelid. Performed through an incision in the natural eyelid crease
• Müller muscle-conjunctival resection (MMCR) — an internal approach for mild ptosis; a small section of the Müller muscle and conjunctiva is removed from the inside of the eyelid, lifting it without an external incision
• Frontalis sling — used for severe ptosis with poor levator function, particularly in congenital cases; a sling material connects the eyelid to the frontalis (forehead) muscle, allowing the patient to lift the lid by raising the eyebrow

Ptosis surgery is typically performed as an outpatient procedure under local anesthesia with sedation. In children with congenital ptosis, general anesthesia is used.

Recovery After Ptosis Surgery

• Day of surgery: Patients return home the same day. Cold compresses and prescribed antibiotic/anti-inflammatory drops are started immediately.
• Days 1–5: Swelling and bruising are most prominent. The eyelid may appear slightly overcorrected (too high) initially — this is expected and resolves as swelling decreases.
• Weeks 1–2: Sutures are removed if non-dissolving sutures were used. Most patients return to work and daily activities within 7 to 10 days.
• Weeks 3–6: Swelling continues to resolve and eyelid height stabilizes. Final symmetry becomes more apparent.
• Months 2–3: Full healing is typically complete. Incision lines within the eyelid crease fade and become nearly invisible.

Ptosis in Children

Congenital ptosis requires careful evaluation by a pediatric ophthalmologist or an experienced oculoplastic surgeon. The primary concern in children is not cosmetic — it is the risk of amblyopia. If the drooping lid blocks the visual axis during the critical period of visual development (birth through approximately age 7 to 9), the brain may permanently suppress input from that eye.

The timing of surgery depends on the severity:

• Severe ptosis covering the pupil — surgery is typically recommended early, sometimes within the first year of life, to allow normal visual development
• Moderate ptosis — surgery may be deferred until age 3 to 5 if the child is not developing amblyopia and the ptosis is not worsening
• Mild ptosis — may be monitored with regular eye exams to ensure vision is developing normally in both eyes

All children with ptosis — whether or not they have had surgery — should have regular eye exams to monitor for amblyopia, refractive changes, and recurrence.

When to See an Eye Doctor

Schedule an evaluation at West Boca Eye Center if:

• One or both upper eyelids appear to droop or feel heavy
• You find yourself tilting your head back or raising your eyebrows to see clearly
• Your upper visual field seems reduced or obstructed
• Your child has a noticeable difference in eyelid height between the two eyes
• Ptosis develops suddenly — seek emergency care if accompanied by headache, double vision, or pupil changes

Dr. Brent Bellotte at West Boca Eye Center provides comprehensive ptosis evaluation and surgical correction for both adults and children. As an ophthalmologist with experience in functional and cosmetic eyelid procedures, Dr. Bellotte determines the most appropriate surgical technique based on levator function, severity, and each patient's anatomy.

West Boca Eye Center is located at 9325 Glades Road, Suite 201, Boca Raton, FL 33434. Call (561) 488-1001 to schedule your evaluation.

Frequently Asked Questions About Ptosis

What is the difference between ptosis and droopy eyelids from aging?

Ptosis is caused by weakness or detachment of the levator muscle that lifts the eyelid. Droopy eyelids from aging (dermatochalasis) are caused by excess skin that accumulates above the eyelid crease. The two conditions frequently coexist but require different surgical techniques — ptosis repair addresses the muscle, while blepharoplasty removes excess skin. Dr. Bellotte often performs both procedures together when indicated.

Is ptosis surgery covered by insurance?

Functional ptosis surgery — where the drooping lid obstructs the upper visual field — is often covered by insurance when supported by a visual field test showing measurable obstruction and clinical photographs. Ptosis correction performed solely for cosmetic reasons is typically not covered. The team at West Boca Eye Center can help determine whether your case qualifies.

Can ptosis come back after surgery?

Recurrence is possible but uncommon after properly performed ptosis surgery. Age-related ptosis has a slightly higher recurrence rate over many years because the levator tendon can continue to stretch with aging. Regular follow-up exams allow early detection if the eyelid begins to droop again, and revision surgery can be performed if needed.

How do I know if my child needs ptosis surgery?

If your child's eyelid covers or partially covers the pupil, surgery is typically recommended early to prevent amblyopia. If the ptosis is mild and the pupil is not blocked, your ophthalmologist may recommend monitoring with regular eye exams. Any child with ptosis should be evaluated by an eye specialist to determine whether vision is developing normally.

What causes sudden ptosis?

Sudden-onset ptosis can be caused by a brain aneurysm, stroke, nerve injury, or myasthenia gravis. If ptosis develops abruptly — especially with headache, double vision, or pupil changes — it should be treated as a medical emergency. Seek immediate evaluation at an emergency room or contact your ophthalmologist right away.

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