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Pseudoduplication of the optic disk.

Young Sun1, Jacqueline K Ng, Michael W Gaynon

  • 1From the *Department of Ophthalmology, Stanford University, Stanford, California; and †Department of Ophthalmology, Palo Alto Medical Foundation, Palo Alto, California.

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|November 13, 2014
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Summary
This summary is machine-generated.

A rare case of chorioretinal coloboma in a 12-year-old boy mimicked a second optic disk. This finding highlights the importance of careful clinical examination to differentiate colobomas from true optic nerve duplication.

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Area of Science:

  • Ophthalmology
  • Medical Imaging

Background:

  • Optic nerve duplication is a rare congenital anomaly.
  • Differential diagnosis is crucial for accurate patient management.

Purpose of the Study:

  • To report a case of chorioretinal coloboma mimicking a second optic disk.
  • To emphasize the importance of distinguishing colobomas from true optic nerve duplication.

Main Methods:

  • Case report presentation.
  • Clinical examination of the affected eye.

Main Results:

  • A 12-year-old boy presented with a unilateral chorioretinal coloboma.
  • The coloboma created the appearance of a second optic disk.
  • A superior visual field defect was noted in the affected eye.

Conclusions:

  • Choroidal colobomas can mimic true optic nerve duplication.
  • Postinflammatory lesions can also present as optic disk anomalies.
  • Thorough clinical evaluation is essential for correct diagnosis.