The purpose of this study is to evaluate the long-term visual outcome of the cataract surgery using a large-scale and comprehensive database of pediatric cataract participants, including congenital and traumatic cataract. The investigators will further investigate into the various genetic and environmental factors that may contribute to the pathogenesis of pediatric cataract.
Study Type
OBSERVATIONAL
Enrollment
10,000
1)Pediatric cataract patients with intraocular lens implantation and those without intraocular lens implantation;2)Traumatic cataract patients with intraocular lens implantation and those without intraocular lens implantation
Eye and ENT Hospital of Fudan University
Shanghai, Shanghai Municipality, China
RECRUITINGDifferences in the visual outcomes of pediatric cataract patients.
Visual outcomes are evaluated including visual acuity with or without correction, refractive changes, intraocular pressure, fundus function, fixation type, vision development, growth of axial length, contrast sensitivity and other visual outcome measurements.
Time frame: Follow-up until ten years after surgery.
Genetic diversity based on biospecimen samples of pediatric cataract patients.
Sequencing of genes (including exons, promoters, 5' UTR and 3' UTR sequences) on a large scale to intensively investigate into the sites and functions of single nucleotide polymorphism (SNP) correlated with clinical features of congenital cataract patients, compared to traumatic cataract patients.Samples of blood, aqueous humor, anterior capsular membranes and lens tissues were applied for the genetic analysis.
Time frame: Analyzed within six months after surgery.
Differences in the clinical phenotypes of pediatric cataract patients.
Cataract type and severity of ametropic cataract patients are evaluated and images are captured before receiving the cataract surgery.
Time frame: Evaluated before receiving the cataract surgery.
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