Blepharoptosis repair
Eye Care
estimated about CNY 5000-9000
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Description
Surgical correction of ptosis, typically via levator resection or frontalis sling suspension to restore normal upper eyelid position and function.
Main Uses
Primary purpose is functional and cosmetic correction of upper eyelid ptosis impairing visual field (especially in children to prevent amblyopia), improving ocular exposure, restoring symmetric eyelid contour, and enhancing facial aesthetics. Indicated for moderate-to-severe ptosis (MRD1 ≤0 mm or ≤2 mm with poor LPS function), congenital ptosis unresponsive to conservative management, aponeurotic ptosis, and neurogenic ptosis when stable.
Normal Range
Not applicable — upper eyelid ptosis correction surgery is a surgical procedure, not a diagnostic test with numerical values or reference ranges. Preoperative assessment includes measurements such as marginal reflex distance-1 (MRD1), levator palpebrae superioris (LPS) function (typically 12–16 mm excursion in healthy adults), and eyelid crease height; normal MRD1 is +1 to +4 mm, LPS function ≥12 mm indicates good levator function.
Low Values - Possible Causes
Congenital levator muscle hypoplasia or dysgenesis, acquired myogenic disorders (e.g., myasthenia gravis, chronic progressive external ophthalmoplegia), neurogenic causes (e.g., third cranial nerve palsy, Horner syndrome), aponeurotic dehiscence (often age-related or post-traumatic), mechanical ptosis due to eyelid mass or scarring.
High Values - Possible Causes
Not clinically meaningful — 'high values' do not apply to this surgical intervention. Elevated preoperative measurements (e.g., MRD1 >4 mm or LPS excursion >16 mm) are rare and typically reflect anatomical variation or measurement artifact; no pathological condition is associated with 'excessively high' levator function requiring surgical correction.
estimated about CNY 5000-9000
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