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Population-based case-control study of isolated congenital cataract
Gábor Vogt1, Erzsébet Puhó, Andrew E Czeizel
1Hospital and Central Outpatient Clinics of the Hungarian State Railways, Budapest, Hungary. gabor.vogt@tosho.hu
Birth Defects Research. Part A, Clinical and Molecular Teratology
|December 3, 2005
Summary
Maternal infections like rubella, influenza, and respiratory illnesses during pregnancy increase the risk of congenital cataracts. Antipyretic therapy may mitigate this risk, suggesting preventable causes for some cataract cases.
Area of Science:
- Ophthalmology
- Teratology
- Epidemiology
Background:
- Congenital cataracts are a significant cause of childhood visual impairment.
- Identifying etiological factors is crucial for prevention strategies.
Purpose of the Study:
- To investigate potential etiological factors contributing to isolated congenital cataracts.
- To assess the role of maternal infections and family history in cataract development.
Main Methods:
- A case-control study utilizing the Hungarian Case-Control Surveillance of Congenital Abnormalities database (1980-2002).
- Inclusion of 111 isolated congenital cataract cases and matched controls.
- Data collection through medical records, maternal interviews, and nurse home visits.
Main Results:
- A positive family history suggested autosomal-dominant inheritance in 10% of cases.
- Increased maternal incidence of rubella prior to vaccination.
- Significantly higher prevalence of influenza/common cold (55.9%) and respiratory infections (26.1%) during pregnancy in cases compared to controls.
- Antipyretic therapy appeared to negate the increased risk associated with fever-related respiratory illnesses.
Conclusions:
- Congenital cataracts may be preventable through rubella vaccination and potentially influenza vaccination.
- Antipyretic treatment for maternal fever-related respiratory diseases could reduce teratogenic risks.