[Alcohol during pregnancy damages eye and vision development]
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1Ogonavdelningen för barn, Barnklinikerna, Ostra sjukhuset, Göteborg.
Insights
Maternal alcohol consumption during pregnancy can lead to fetal alcohol syndrome (FAS), causing significant eye abnormalities and vision impairment in children. These developmental issues, including optic nerve hypoplasia, can affect vision from early gestation through completion.
Area of Science:
- Ophthalmology
- Teratology
- Developmental Biology
Context:
- Maternal alcohol abuse during pregnancy is a leading preventable cause of birth defects.
- Fetal Alcohol Syndrome (FAS) encompasses a range of physical, cognitive, and behavioral issues.
- Ocular abnormalities are frequently observed in children diagnosed with FAS.
Purpose:
- To summarize the ocular manifestations associated with prenatal alcohol exposure.
- To highlight the prevalence and types of eye malformations in fetal alcohol syndrome.
- To emphasize the critical developmental periods for alcohol's impact on eye structures.
Summary:
- Prenatal alcohol exposure causes significant eye malformations in up to 90% of children with fetal alcohol syndrome.
- Common findings include optic nerve head hypoplasia and increased retinal vascular tortuosity, affecting up to 50% of cases.
- Reduced visual acuity is a frequent consequence, underscoring the severity of these developmental disruptions.
Impact:
- Prenatal alcohol exposure poses a substantial risk to visual development, potentially causing lifelong vision impairment.
- Understanding these risks informs clinical practice and public health interventions aimed at preventing FAS.
- Early identification and management of ocular issues in FAS can mitigate long-term visual deficits.
Abstract:
Maternal alcohol abuse during pregnancy causes malformations of the eyes with serious consequences to the vision of the affected children. A high percentage (up to 90 per cent) of children suffering from the fetal alcohol syndrome have eye abnormalities of different kinds. The most typical are hypoplasia of the optic nervehead and increased tortuosity of the retinal vessels, especially of the arteries, both occurring in up to half of the cases. Visual acuity is often reduced. Considering the developmental timing of different tissues of the eye, one can presume that there is a risk for deleterious effects of alcohol on eye structures at any point of time from early gestation until development is completed.