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Isolated Congenital Hereditary Cataract in a Dizygotic Twin: Prenatal Ultrasonographic Diagnosis

  • Kyung A Lee (a1), Mi-Hye Park (a2), Young Ju Kim (a2) and Sun Hee Chun (a2)

Abstract

Cataract, defined as opacity of the lens in one or both eyes, is a major cause of blindness throughout the world, and not uncommon, particularly in the elderly population. However, congenital cataracts are rare and occur with a frequency of 30 cases in 100,000 births. About one-third of the cases fall into the group inherited without systemic abnormality. Importantly, congenital cataracts produce deprivation amblyopia, refractive amblyopia, and retinal detachment, leading to lifelong visual impairment. Successful management is dependent on early diagnosis and referral for surgery when indicated. Here we present a case of hereditary bilateral cataracts in a dizygotic twin detected on prenatal ultrasound examinations and postnatally confirmed as congenital cataracts associated with posterior lenticonus.

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Copyright

Corresponding author

address for correspondence: Dr Mi-Hye Park, MD, PhD, Department of Obstetrics and Gynecology, School of Medicine, Ewha Womans University, Seoul, Korea. E-mail: ewhapmh@ewha.ac.kr

References

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