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Pediatric cataract: the Toronto experience-etiology
Zena Lim1, Shehla Rubab, Yiong Huak Chan
1Department of Ophthalmology and Vision Sciences, The Hospital for Sick Children, Toronto, Ontario, Canada.
American Journal of Ophthalmology
|May 1, 2010
Summary
This study of pediatric cataracts found that unilateral cases and idiopathic causes were most common. Steroid treatment and Down syndrome were significant associated factors in children.
Area of Science:
- Ophthalmology
- Pediatric Medicine
- Genetics
Background:
- Pediatric cataracts are a significant cause of visual impairment in children.
- Understanding the etiology and characteristics of pediatric cataracts is crucial for early diagnosis and management.
- Large-scale studies are needed to elucidate the diverse origins and presentations of childhood cataracts.
Purpose of the Study:
- To investigate the causes and clinical features of pediatric cataracts.
- To analyze a large cohort of children with various types of cataracts from a single institution.
- To identify common etiologies, morphological types, and associated conditions in pediatric cataracts.
Main Methods:
- An observational case series design was employed.
- Data from 778 children (1122 eyes) with pediatric cataracts over 10 years were analyzed.
- Information collected included age, laterality, cataract type, etiology, strabismus, systemic associations, and visual acuity.
Main Results:
- Unilateral cataracts occurred in over half of the cases.
- Idiopathic etiology was the most frequent cause.
- Steroid treatment-induced cataracts were the most common systemic association; Down syndrome accounted for one-third of syndrome-associated cataracts.
- Posterior subcapsular cataract was the predominant morphological type.
Conclusions:
- Unilateral cataracts and idiopathic causes are predominant in pediatric cases.
- Diverse etiologies exist, with significant systemic associations noted.
- Early visual acuity was often preserved in nearly half of the patients.
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