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Non-genetic Risk Factors of Congenital Cataracts

Establishment of the Mathematic Model of Non-genetic Risk Factors of Congenital Cataracts

Status
UNKNOWN
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT03215186
Enrollment
2000
Registered
2017-07-12
Start date
2011-02-01
Completion date
2018-06-30
Last updated
2017-07-12

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Cataract

Keywords

congenital cataract, risk factor, mathematic model

Brief summary

Prevention and treatment of the reversible childhood blindness, including congenital cataracts (CC), has been listed as a significant component of the international programme VISION 2020 - the Right to Sight launched by WHO in 1999. However, there is still a lot of unsolved problems regarding to CC, especially in developing countries, such as the delayed presentation and treatment to the hospitals, the lack of specialized treatment departments, and the poor treatment prognosis. With the two children policy opened in China in 2016, many CC parents hesitate to have a second child due to the potential high risk of CC. Date on detailed clinical characteristics of the CC children, including the demography, pregnancy-labor history, and living condition, are crucial for developing the national screening strategies of CC in Pregnant women. However, to our knowledge, it still lacks of thus large population-based and comprehensive investigations of the characteristics of CC children in developing countries.

Detailed description

Prevention and treatment of the reversible childhood blindness, including congenital cataracts (CC), has been listed as a significant component of the international programme VISION 2020 - the Right to Sight launched by WHO in 1999. However, there is still a lot of unsolved problems regarding to CC, especially in developing countries, such as the delayed presentation and treatment to the hospitals, the lack of specialized treatment departments, and the poor treatment prognosis. With the two children policy opened in China in 2016, many CC parents hesitate to have a second child due to the potential high risk of CC. Date on detailed clinical characteristics of the CC children, including the demography, pregnancy-labor history, and living condition, are crucial for developing the national screening strategies of CC in Pregnant women. However, to our knowledge, it still lacks of thus large population-based and comprehensive investigations of the characteristics of CC children in developing countries. Supporting by the National Ministry of Health and the Zhongshan Ophthalmic Center (ZOC), a specialized eye facility with the largest CC database in China, we therefore comprehensively investigated the demography, pregnancy-labor history, and living condition of CC children with their first visits to the hospital. We also further established a mathematic model of non-genetic risk factors of congenital cataracts. The implications of this study will be of clinical importance to roughly predict the risk of CC in pregnant women.

Interventions

OTHERobservational study

Sponsors

Ministry of Health, China
CollaboratorOTHER_GOV
Sun Yat-sen University
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
No minimum to 18 Years
Healthy volunteers
Yes

Inclusion criteria

* Diagnosis of congenital cataract. * Less than 18 years old.

Exclusion criteria

* The children with definite or suspected ocular trauma (including blunt trauma) history and those with regular ocular or systemic steroid history were excluded from this study. * The children came from the welfare homes with unclear family heredity and gestation history information were also excluded.

Design outcomes

Primary

MeasureTime frameDescription
Demography (age, sex, and laterality)BaselineThe demography of cataract and healthy children were recorded by using a semi-structured questionnaire.
Family and pregnancy-labor histories (family history, mothers' disease and medication histories during pregnancy, premature or term infant, cesarean or eutocia, and history of oxygen inspiration/infant incubator)BaselineMeasured by using a semi-structured questionnaire.
Complicated systemic diseases (congenital heart diseases, brain diseases, favism, etc.)BaselineMeasured by using a semi-structured questionnaire.
Living environment (radiation/pollution exposure, parental smoking, parental education)BaselineMeasured by using a semi-structured questionnaire.

Countries

China

Contacts

Primary ContactJing Li, M.D.
+86-20-87330341

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026