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Bilateral optic nerve injury.

A K Mahapatra1

  • 1Department of Neurosurgery, All India Institute of Medical Sciences, New Delhi, 110029, India.

Neurology India
|July 13, 1999
PubMed
Summary
This summary is machine-generated.

Bilateral optic nerve injury, though rare, shows significant visual improvement in most patients treated with steroids. This study analyzes 31 cases, highlighting road traffic accidents as a primary cause.

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Area of Science:

  • Ophthalmology
  • Neurology
  • Trauma Surgery

Background:

  • Bilateral optic nerve injury is a rare condition, comprising 5-6% of all optic nerve injuries.
  • No published case series specifically addresses bilateral optic nerve injury.
  • This study analyzes a series of 31 patients with bilateral optic nerve involvement.

Purpose of the Study:

  • To analyze the characteristics and outcomes of patients with bilateral optic nerve injury.
  • To identify common causes and associated injuries.
  • To discuss factors contributing to visual recovery.

Main Methods:

  • Retrospective analysis of 31 patients with bilateral optic nerve injury from a larger cohort of 275 optic nerve injury patients.
  • Data collection included injury mechanisms, associated fractures, treatments (steroids), and visual outcomes.

Related Experiment Videos

  • Visual evoked potentials (VEPs) were recorded in 27 patients.

    • Main Results:

    • Road traffic accidents were the most common cause (61%), followed by shotgun/blast injuries (22.5%).
    • Anterior cranial fossa fractures and paranasal sinus opacities were noted in one-third of patients.
    • Overall, 74% of patients (23/31) and 62.8% of eyes (39/62) showed visual improvement, with most receiving steroids.

    Conclusions:

    • Bilateral optic nerve injury, often caused by trauma, can have a favorable visual outcome with treatment.
    • Steroid administration appears to be associated with improved vision.
    • Associated cranial or sinus injuries may influence prognosis.