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66724 Anatomy

A 3 month old infant was brought to the Opthalmology OPD by her mother,as she noticed that pa of the iris in the baby&;s right eye was missing. Examination revealed a defect in the inferior region of iris and pupillary region which gave it a characteristic keyhole appearance. Which of the following mechanisms during the embryonic development will most likely lead to the given condition ?

ACongenital detachment of retina
BCavitation of posterior chamber
CAbnormal neural crest formation
DFailure of closure of choroid fissure
Anatomy
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