Amblyopia in congenital ptosis
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Updated: Nov 6, 2026

The Measurement and Treatment of Suppression in Amblyopia
Published on: December 14, 2012
A Hornblass1, L G Kass, A J Ziffer
1Department of Oculoplastic Surgery, State University of New York-Health Science Center, Brooklyn, USA.
Abstract:
This study evaluates the association between congenital ptosis and amblyopia. Amblyopia was detected in 7 of 36 (19%) patients with congenital ptosis. Two patients (6%) with amblyopia had no contributing factors other than the presence of congenital ptosis. A statistically significant correlation between severe nonocclusive ptosis (greater than or equal to 4 mm) and the development of amblyopia was identified. No new cases of amblyopia developed after surgical repair of the ptosis, suggesting early surgery for severe nonocclusive congenital ptosis may decrease the incidence of amblyopia.
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