Pregnant Couple Takes Genetic Test as a Precaution, Then Gets a Call
Summary
An Australian couple expecting their first child learned from genetic screening that both were carriers of a rare condition called oculocutaneous albinism type 1 (OCA1). Their unborn daughter had a 25% chance of inheriting the condition, which affects skin, hair, and eye pigmentation and vision. After confirming the diagnosis through further testing, the couple connected with support groups and prepared to care for their daughter.Key Facts
- Georgina Trousas (40) and Adam Lagus (39) from Sydney took an expanded genetic carrier screening during pregnancy.
- The screening tested for 800 genetic conditions and showed both parents carried genes for OCA1.
- OCA1 affects melanin production, influencing skin, hair, and eyes, and can cause vision problems.
- Their unborn daughter had a 1 in 4 (25%) chance of inheriting both genes and having the condition.
- The couple used amniocentesis, a prenatal test that checks fetal DNA from amniotic fluid, to confirm the diagnosis.
- OCA1 severity varies, and managing it includes lifelong eye care and sun protection.
- The couple reached out to people and organizations experienced with albinism for support and information.
- Genetic carrier screening can reveal risks even without family history; about 80% of children with genetic conditions come from families with no known history.
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