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Related Experiment Videos

A traumatic bitemporal hemianopia with macular sparing.

Niphon Chirapapaisan1, Alfredo A Sadun

  • 1Department of Ophthalmology, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand. niphon55@yahoo.com

Journal of the Medical Association of Thailand = Chotmaihet Thangphaet
|May 10, 2006
PubMed
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Traumatic chiasmal syndrome, a rare complication of head trauma, can cause vision loss like bitemporal hemianopia. This case highlights its occurrence after severe frontal head injury.

Area of Science:

  • Neuroscience
  • Ophthalmology

Background:

  • Traumatic chiasmal syndrome is an uncommon consequence of head injuries.
  • It frequently manifests as bitemporal hemianopia, a visual field defect affecting both eyes.

Observation:

  • A 47-year-old male experienced severe frontal head trauma in a motor vehicle accident.
  • The trauma resulted in multiple cranial fractures and extended loss of consciousness.

Findings:

  • The patient was diagnosed with traumatic chiasmal syndrome.
  • Tangent field testing indicated bitemporal hemianopias with some macular sparing.
  • Macular sparing was absent on the Humphrey visual field test (30-2 pattern).

Implications:

  • This case underscores the importance of visual field testing in patients with head trauma.

Related Experiment Videos

  • Understanding the nuances of visual field defects, such as macular sparing, is crucial for accurate diagnosis and management.