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Updated: Jul 14, 2026
12:06
Optic Nerve Transection: A Model of Adult Neuron Apoptosis in the Central Nervous System
Published on: May 12, 2011
[Acute post-traumatic optic nerve avulsion: case report]
Magno Antônio Ferreira1, Cristiano Toesca Espinhosa, Eduardo Guilherme Vaz Andreo
1Universidade Federal de Uberlândia, Uberlândia, MG, Brasil.
Arquivos Brasileiros De Oftalmologia
|June 26, 2007
Summary
Optic nerve avulsion is a rare but severe eye injury where the optic nerve detaches. Early diagnosis is key, as complementary exams may be inaccurate, especially with partial avulsion.
Area of Science:
- Ophthalmology
- Retinal Diseases
- Optic Nerve Disorders
Background:
- Optic nerve avulsion is a rare and severe ocular complication.
- It involves the disinsertion of the optic nerve from the posterior ocular structures.
- Diagnosis can be challenging, particularly in cases of partial avulsion or opaque media.
Observation:
- The fundus appearance in complete optic nerve avulsion is distinctive.
- A characteristic cavity or hole is noted where the optic disc has retracted.
- This retraction occurs within the optic nerve's dural sheath.
Findings:
- Clear media allow for straightforward diagnosis of complete optic nerve avulsion.
- Complementary examinations often lack accuracy for diagnosing this condition.
- Partial avulsions with residual vision and opaque media can lead to misdiagnosis or delayed diagnosis.
Implications:
- Accurate and timely diagnosis of optic nerve avulsion is crucial for patient outcomes.
- The limitations of current diagnostic tools highlight the need for improved methods.
- Understanding the varied presentations is vital for ophthalmologists to prevent diagnostic errors.
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