Congenital Achiasma

J Neuroophthalmol. 2018 Sep;38(3):344-346. doi: 10.1097/WNO.0000000000000650.


In evaluating a 3-month-old boy with horizontal nystagmus, brain MRI revealed absence of the optic chiasm. The remainder of the brain was normal in appearance. Achiasma was confirmed with diffusion tensor imaging and best visualized with optimized probabilistic-based tractography.

Publication types

  • Case Reports

MeSH terms

  • Diffusion Magnetic Resonance Imaging / methods
  • Follow-Up Studies
  • Humans
  • Infant
  • Male
  • Optic Chiasm / abnormalities*
  • Optic Chiasm / diagnostic imaging
  • Optic Nerve Diseases / congenital*
  • Optic Nerve Diseases / diagnosis
  • Visual Acuity*