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Is Congenital Cataracts Genetic?
- Heritability
- ~75%
- Inheritance
- autosomal-dominant
- Key genes
- GJA8 CRYAB MIP
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Lens clouding present at birth. About 25–30% of congenital cataracts are hereditary with multiple genes responsible for different cataract types.
How Genetic Is Congenital Cataracts?
Congenital Cataracts has a strong genetic basis. Research estimates heritability at approximately 75%, meaning genetic factors account for the majority of variation in whether individuals develop this condition.
Key genes associated with Congenital Cataracts: GJA8 CRYAB MIP. Variants in these genes have been identified through genome-wide association studies (GWAS) and clinical research as influencing susceptibility or severity.
Source: MedlinePlus Genetics
Does Family History Matter for Congenital Cataracts?
Yes — family history is one of the strongest predictors of Congenital Cataracts. If a first-degree relative (parent, sibling, or child) has been diagnosed, your own risk may be significantly elevated. Discussing your family history with a healthcare provider or genetic counsellor is strongly recommended.
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