This prospective multicenter observational study aims to evaluate the 5-year visual function and refractive outcomes in children undergoing surgery for congenital cataract. Key outcomes include best-corrected visual acuity, stereopsis, refractive error, and axial length growth. The study will help identify long-term trends and prognostic indicators after early cataract intervention in pediatric patients.
Eligibility
Sex
ALL
Min age
—
Max age
18 Years
Healthy volunteers
No
Inclusion Criteria:
* Diagnosis of congenital cataract
* Underwent cataract extraction before 1 year of age
* Available for regular follow-up for at least 5 years postoperatively
* Written informed consent from legal guardian
Exclusion Criteria:
* Acquired cataract or traumatic origin
* Associated ocular malformations (e.g., microphthalmia, coloboma)
* Systemic syndromes affecting vision (e.g., Down syndrome)
* History of secondary surgery affecting visual outcome
Primary outcome measure(s)
Visual Acuity — Participants will be followed at 1 week, 1 month, 3 months, 6 months, and annually from 1 to 5 years postoperatively. UDVA and BCVA will be assessed using age-appropriate optotypes (e.g., Snellen chart, ETDRS chart, or Lea symbols) and recorded in logMAR units at the last available follow-up, with a minimum duration of 5 years postoperatively.
axial length — Participants will be followed at 1 week, 1 month, 3 months, 6 months, and annually from 1 to 5 years postoperatively. AL
Refractive Error — Participants will be followed at 1 week, 1 month, 3 months, 6 months, and annually from 1 to 5 years postoperatively. Refractive Error
This page summarises publicly available registry data for informational purposes — not medical advice. Eligibility is determined by each study team; patients should discuss participation with their clinician.
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