Related Experiment Video
Updated: Jul 19, 2026

Surgical Correction for Pediatric Epiblepharon and Trichiasis
Published on: July 8, 2025
The factors influencing visual development in blepharophimosis-ptosis-epicanthus inversus syndrome
Ki-Hwan Choi1, Sungeun Kyung, Sei Yeul Oh
1Department of Ophthalmology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
Purpose:
To investigate the factors influencing visual development in blepharophimosis-ptosis-epicanthus inversus syndrome.
Materials And Methods:
The study population comprised 20 patients with blepharophimosis-ptosis-epicanthus inversus syndrome who were referred for an oculoplastic opinion. The ocular examination included measurement of Snellen visual acuity, cycloplegic refraction, ocular movements and alignment, and the presence of amblyopia. Patients were treated with spectacle correction, occlusion therapy, strabismus surgery, and oculoplastic surgery if necessary. Minimum follow-up was 2 years.
Results:
Nine (45%) patients had amblyopia; 5 (25%) of these patients had unilateral amblyopia and 4 (20%) had bilateral amblyopia. Six (67%) patients with amblyopia had a significant coexisting strabismus. A significant strabismus was present in 11 (55%) patients; 6 (55%) of these patients had unilateral or bilateral amblyopia. Patients with strabismus were more likely to have amblyopia than those without. A total of 14 (70%) patients had refractive error; 6 (43%) of these patients had amblyopia.
Conclusions:
Patients with blepharophimosis-ptosis-epicanthus inversus syndrome had a high rate of amblyopia, especially bilateral amblyopia. Patients with strabismus were more likely to have amblyopia than those without. Patients also had a high incidence of refractive errors.
Related Concept Videos
Accessory Structures of the Eye
Photoreceptors and Visual Pathways
Muscles of the Eye
Extraocular Muscles
The six extraocular muscles surround the eyeball and control its movements. They are responsible for a wide range of eye motions, including looking up, down, left, right, and rotating...
Microbiome of the Eye
