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  • Title: Congenital pits of the optic nerve head and retinochoroidal colobomas.
    Author: Brown GC, Augsburger JJ.
    Journal: Can J Ophthalmol; 1980 Jul; 15(3):144-6. PubMed ID: 7437942.
    Abstract:
    A 45-year-old man presented with bilateral retinochoroidal colobomas associated with an inferonasal congenital pit of the optic nerve head in each eye. Different theories on the origin of such pits are discussed. This case supports the theory that some congenital optic pits occur as a result of failure of closure of the superior end of the embryonic fissure.
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