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Congenital eye malformations in 212,479 consecutive births
1Hôpital de Hautepierre, Centre Hospitalo-Universitaire, Strasbourg, France.
Annales De Genetique
|January 1, 1997
Summary
Congenital eye malformations, including microphthalmia and anophthalmia, are linked to maternal drug use, paternal occupational hazards, and parental consanguinity. These findings are crucial for genetic counseling regarding recurrence risks.
Area of Science:
- Ophthalmology
- Medical Genetics
- Epidemiology
Background:
- Congenital eye malformations represent a spectrum of developmental anomalies affecting vision.
- Understanding the prevalence and associated risk factors is essential for early diagnosis and intervention.
Purpose of the Study:
- To investigate the prevalence and potential risk factors associated with congenital eye malformations in a defined geographical area.
- To provide data relevant for genetic counseling concerning recurrence risks.
Main Methods:
- A population-based study of 212,479 births between 1979 and 1994.
- Comparison of over 50 factors between 145 cases of congenital eye malformations and controls.
- Analysis of associated anomalies, pregnancy complications, and parental exposures.
Main Results:
- Prevalence rates: microphthalmia (1.7), anophthalmia (0.23), cataract (2.7), coloboma (1.4) per 10,000 births.
- Associated malformations included clubfeet, microcephaly, and cleft lip/palate.
- Increased maternal drug use, paternal occupational hazards, consanguinity, and adverse pregnancy outcomes were noted.
Conclusions:
- Congenital eye malformations are associated with various environmental and genetic factors.
- A significant recurrence risk exists for first-degree relatives.
- These findings underscore the importance of comprehensive genetic counseling for affected families.