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Congenital Ptosis

Congenital drooping of the upper eyelid present at birth or appearing within the first year of life, caused by isolated dystrophic maldevelopment of the levator palpebrae superioris muscle (myogenic ptosis, 75 percent of cases) characterized by fibrofatty infiltration with loss of muscle striations and elastic tissue, leading to reduced contraction strength and limited upward eyelid excursion; can also result from oculomotor nerve abnormalities (neurogenic — Marcus Gunn jaw-winking, congenital third nerve palsy, congenital Horner syndrome, blepharophimosis-ptosis-epicanthus inversus syndrome BPES); requires careful evaluation of severity, levator function (poor < 4 mm, fair 5-7 mm, good > 8 mm), associated amblyopia risk (visual axis obstruction, induced astigmatism, anisometropia), with surgical timing balancing amblyopia prevention against achieving accurate measurements (typically age 3-5 unless severe with amblyopia risk); surgical options include frontalis sling (poor function), levator resection or advancement (fair-good function), and tarsal switch procedures.

Written by: Saygı Hospital Health Guide Editorial Board
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This content has been compiled by the Saygı Hospital Health Guide Editorial Board and is periodically reviewed by a specialist physician.

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What is Congenital Ptosis?

Congenital ptosis is drooping of the upper eyelid present at birth or appearing within the first year of life, resulting in reduced palpebral aperture and partial obstruction of the visual axis. The condition affects approximately 1 in 500 live births (0.2 percent), is bilateral in 25 percent and unilateral in 75 percent, with no sex predilection. The most important clinical implications are amblyopia risk (visual axis obstruction in severe cases, induced astigmatism from lid pressure on cornea, anisometropic refractive errors, strabismus), abnormal head posture (chin-up position to compensate), cosmetic concerns affecting psychosocial development, and need for early intervention to prevent permanent visual loss.

Pathophysiology: 1) Myogenic (75 percent) — most common cause; isolated dystrophy of the levator palpebrae superioris muscle with histopathologic findings of fibrofatty infiltration replacing muscle fibers, decreased muscle striations and bulk, loss of elastic tissue; produces both reduced upward excursion (poor levator function) and impaired relaxation in downgaze (characteristic lid lag — affected lid does not descend normally compared to fellow eye in downgaze, opposite of acquired aponeurotic ptosis where lid descends normally); 2) Neurogenic — congenital third nerve palsy (associated extraocular muscle limitation, pupillary involvement, may be aberrant regeneration with synkinesis), Marcus Gunn jaw-winking syndrome (5 percent — synkinetic ptosis with eyelid elevation on jaw movement, swallowing, sucking due to aberrant innervation between trigeminal motor nucleus and oculomotor levator branch), congenital Horner syndrome (miosis, anhidrosis, heterochromia of iris with hypopigmentation, evaluate for neuroblastoma); 3) Mechanical — eyelid mass effect from capillary hemangioma (involutes naturally but may need treatment if amblyogenic), plexiform neurofibroma (NF1 association — characteristic S-shaped lid), dermoid cyst, lipoma; 4) Traumatic — birth trauma with forceps delivery causing levator damage; 5) Syndromic — blepharophimosis-ptosis-epicanthus inversus syndrome (BPES) with FOXL2 mutations on chromosome 3q23, characterized by quadrad of bilateral severe ptosis with poor levator function, horizontal narrowing of palpebral fissures (blepharophimosis), telecanthus (widened intercanthal distance), epicanthus inversus (skin fold from lower lid covering medial canthus), with type I (premature ovarian failure in females) and type II (no fertility issues); congenital fibrosis of extraocular muscles (CFEOM); Smith-Lemli-Opitz syndrome; Kabuki syndrome.

Classification: 1) Severity by amount of lid margin covering pupil — mild (1-2 mm), moderate (3 mm), severe (≥ 4 mm covering visual axis); 2) Laterality — unilateral (75 percent) or bilateral (25 percent); 3) Etiologic — myogenic, neurogenic, mechanical, traumatic, syndromic; 4) By levator function — poor (0-4 mm), fair (5-7 mm), good (8-12 mm), excellent (>12 mm); 5) By presence of jaw-winking synkinesis (Marcus Gunn — common in unilateral congenital ptosis, must be evaluated with jaw movements); 6) Simple congenital ptosis (isolated levator dystrophy) versus complex with associated anomalies.

Associated conditions and risks: 1) Amblyopia — affects 19-44 percent of children with congenital ptosis; mechanisms include visual axis deprivation in severe cases (most amblyogenic — requires urgent surgical correction by 3-6 months in severe bilateral or 6-12 months in severe unilateral), induced astigmatism from lid weight on cornea (mean 1.5 D — corrects with refractive correction and surgery), anisometropic refractive errors, strabismus association; 2) Abnormal head posture — chin-up posture in bilateral severe ptosis to position eyes for vision (may cause neck strain, schoolwork posture issues, psychosocial effects); 3) Strabismus — 20-30 percent association, particularly with neurogenic forms; 4) Astigmatism — 30-40 percent due to lid pressure; 5) Refractive errors — increased prevalence requires comprehensive refractive evaluation; 6) Psychosocial issues — affects facial appearance, body image, peer interactions, particularly important in school-age children.

Symptoms

Drooping of upper eyelid present at birth or appearing within first year of life
Asymmetric eye opening (especially in unilateral cases — child looks like one eye is closed)
Visible covering of pupil by upper eyelid (severity-dependent)
Compensatory chin-up head posture (especially in bilateral severe cases)
Frowning or eyebrow elevation (use of frontalis muscle to compensate)
Squinting or apparent fatigue at end of day
Decreased visual acuity in affected eye (amblyopia warning sign)
Family observation of one eye looking different from the other in photographs
Eyelash position altered (upper lashes may be turned downward)
Limited upward excursion of affected lid when looking up
Lid lag in downgaze (affected lid does not descend normally — characteristic of congenital myogenic ptosis)
Synkinetic lid elevation with jaw movement (Marcus Gunn jaw-winking variant)
Associated narrow eyelid opening width (BPES syndrome)
Other ocular abnormalities (strabismus, refractive error)

Risk Factors

Family history of congenital ptosis (autosomal dominant inheritance possible)
BPES syndrome family history (FOXL2 mutations)
Marcus Gunn jaw-winking syndrome (no clear genetic predisposition)
Birth trauma with forceps or vacuum delivery
Prematurity (increased risk)
Prenatal exposure to teratogens
Other neural crest derived structure abnormalities
Neurofibromatosis type 1 (plexiform neurofibroma causing mechanical ptosis)
Capillary hemangioma of eyelid
Congenital cranial nerve abnormalities (third nerve palsy)
Maternal myasthenia gravis (transient neonatal ptosis from antibody transfer — distinct from true congenital)
Genetic syndromes (BPES, CFEOM, Smith-Lemli-Opitz, Kabuki)

When to See a Doctor?

If you experience any of the following symptoms, seek medical attention promptly:

  • Drooping eyelid noted in newborn or infant
  • Asymmetric eye opening or one eye looking smaller than the other
  • Pupil partially or completely covered by upper eyelid
  • Child holding head in chin-up position to see
  • Decreased visual acuity in screening (amblyopia evaluation)
  • Family photographs showing persistent asymmetric appearance
  • Eyelid elevation with jaw movement (jaw-winking)
  • Associated horizontal narrowing of eye opening (BPES screening)
  • Visible eyelid mass (hemangioma, neurofibroma)
  • History of neurofibromatosis in family
  • Strabismus or eye misalignment
  • Sudden new-onset drooping (rule out acquired causes — myasthenia, tumor)
  • Pupillary asymmetry with drooping eyelid (Horner syndrome work-up — neuroblastoma rule-out)
  • Cyclic episodic eyelid drooping (cyclic oculomotor palsy)

Treatment Methods

01
Initial assessment: detailed birth and developmental history (birth trauma, prematurity, family history, syndromic features), comprehensive ophthalmologic examination (visual acuity by age-appropriate method — fix and follow in infants, Teller acuity cards or HOTV in toddlers, Snellen in school-age, refraction with cycloplegic agents — atropine 1 percent BID 3 days for accuracy in young children, cyclopentolate 1 percent in older children, examination for amblyopia, strabismus, refractive errors), systemic examination for syndromic features (epicanthus inversus, telecanthus, jaw-winking with sucking and chewing maneuvers), pupillary evaluation for Horner or third nerve, photographic documentation in primary, up, and down gaze
02
Quantitative measurements: 1) Marginal reflex distance (MRD1) — distance from corneal light reflex to upper lid margin in primary gaze (normal 4-5 mm; ptosis MRD1 < 2 mm; absent MRD1 indicates lid covering visual axis); 2) Levator function (LF) — measured with brow immobilized, distance lid margin moves from extreme downgaze to extreme upgaze (poor 0-4 mm, fair 5-7 mm, good 8-12 mm, excellent > 12 mm); 3) Palpebral fissure height — distance from upper to lower lid margin in primary gaze (normal 9-11 mm); 4) Bell's phenomenon (upward eye movement with attempted lid closure — important for predicting postoperative dry eye risk in patients with poor function); 5) Lagophthalmos measurement (incomplete eyelid closure); 6) Tear film evaluation (Schirmer, TBUT in older children)
03
Amblyopia evaluation and management: amblyopia is the most important medical concern; visual acuity assessment by age-appropriate methods; cycloplegic refraction to detect anisometropia and astigmatism; full-time correction of significant refractive errors; patching of dominant eye 2-6 hours daily for amblyopia treatment, atropine penalization as alternative; orthoptic evaluation for binocular function; in severe ptosis with visual axis obstruction, expedited surgical management to prevent dense deprivation amblyopia (irreversible if not corrected by 6-12 months in severe unilateral cases)
04
Surgical timing decisions: 1) Severe ptosis with visual axis obstruction (MRD1 ≤ 0 mm, lid covering pupil) — early surgery 3-12 months to prevent deprivation amblyopia; 2) Moderate ptosis without visual axis obstruction — typically delay until age 3-5 years for accurate measurements and patient cooperation, allowing facial growth assessment; 3) Significant astigmatism causing meridional amblyopia — earlier surgery may be considered to remove lid pressure on cornea; 4) Marcus Gunn jaw-winking — surgical timing with consideration of synkinesis severity; 5) Bilateral severe — earlier intervention to prevent abnormal head posture and amblyopia
05
Frontalis sling: indicated for poor levator function (< 4 mm); concept involves connecting upper eyelid tarsus to frontalis muscle via subcutaneous sling material allowing brow elevation to elevate eyelid; materials include 1) Silicone rod (Crawford set) — easily adjustable, removable, allows growth adjustment, good for unilateral or staged bilateral, postoperative lagophthalmos common; 2) Autogenous fascia lata — gold standard, harvested from patient's own thigh after age 3-4 (inadequate length before this age), provides best long-term results with least foreign body reaction, longest lasting (recurrence rate 10-30 percent at 10 years), recommended for bilateral severe; 3) Banked fascia lata — similar results to autogenous, no harvest morbidity, may require revision more frequently; 4) ePTFE (Gore-Tex) — synthetic alternative; 5) Mersilene mesh; complications include infection, granuloma, exposed sling, asymmetry, lagophthalmos with exposure keratopathy, undercorrection or overcorrection, recurrence
06
Levator resection or advancement: indicated for fair to good levator function (5+ mm); shortens or advances the levator muscle to elevate eyelid more effectively; technique: external transcutaneous approach, identify levator aponeurosis, resect or advance based on calculated amount (typically 3-4 mm of resection per 1 mm of desired lid elevation), reattach to upper tarsus; success rate 80-90 percent with appropriate selection; advantages over frontalis sling include more natural lid movement with eye movements, no brow muscle compensation needed; disadvantages include less effective for poor function, may require more revision
07
Mueller muscle-conjunctival resection (Putterman): indicated for mild to moderate ptosis with good Mueller function (positive phenylephrine test — 1 percent applied to fornix, lid elevation 1-3 mm at 5 minutes); transconjunctival approach with no visible scar; less commonly used in true congenital ptosis (poor Mueller function typical) but useful in mild congenital and acquired pediatric forms
08
Special considerations and complications: 1) Marcus Gunn jaw-winking — if synkinesis bothersome, levator extirpation with frontalis sling required (sacrifice levator function for symmetric appearance); 2) Bell's phenomenon — important predictor of postoperative dry eye; weak Bell's phenomenon necessitates aggressive lubrication and conservative undercorrection; 3) Dry eye and exposure keratopathy — common postoperatively, manage with frequent preservative-free lubrication, ointments at night, taping eyelids closed at night if needed; 4) Lagophthalmos — incomplete lid closure on gentle eye closure expected; address with lubrication, partial sling tightening adjustment; 5) Asymmetry — common, may require revision; 6) Undercorrection — most common need for revision (10-30 percent); 7) Overcorrection — less common, may require lid lengthening; 8) Lid contour abnormalities (peaked or flattened lid)
09
Postoperative care: 1) Antibiotic ointment to incision and ocular surface for 1-2 weeks; 2) Frequent preservative-free artificial tears or ointment; 3) Cold compresses to reduce swelling; 4) Sleep with head elevated; 5) Avoid eye rubbing; 6) Suture removal at 5-7 days for skin sutures; 7) Avoid swimming and contact sports for 4-6 weeks; 8) Follow-up at 1 week, 1 month, 3 months, 6 months, then annually; 9) Continued amblyopia treatment as needed; 10) Long-term monitoring for recurrence (sling material loosening over time, particularly silicone, may require revision)
10
Long-term outcomes and prognosis: outcomes depend on initial severity, levator function, etiology, and amblyopia status; surgical success (defined as MRD1 ≥ 2-3 mm with good lid contour and minimal asymmetry) achieved in 70-90 percent with first surgery; amblyopia outcomes excellent with appropriate management before age 7 (visual maturation period); recurrence common with frontalis slings particularly silicone (50 percent at 5 years), less common with autogenous fascia lata (10-30 percent at 10 years); cosmetic results generally satisfactory but perfect symmetry rarely achieved especially in unilateral cases; psychosocial outcomes significantly improved with appropriate surgical correction; lifelong follow-up recommended for symptom management and possible revision

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