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Updated: Jul 18, 2026

Optic Nerve Transection: A Model of Adult Neuron Apoptosis in the Central Nervous System

Optic Nerve Transection: A Model of Adult Neuron Apoptosis in the Central Nervous System

Published on: May 12, 2011

Traumatic optic nerve avulsion.

Tulay Simsek¹, Enver Simsek, Beyazit Ilhan

¹Ulucanlar Education and Research Eye Hospital, Ankara, Turkey.

Journal of Pediatric Ophthalmology and Strabismus

|December 14, 2006

Summary

Blunt ocular trauma caused optic nerve avulsion in a child, leading to vision loss and eye movement limitations. Diagnosis was confirmed via ultrasonography showing a posterior ocular wall defect and optic nerve head abnormality.

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Area of Science:

Ophthalmology
Trauma Surgery
Pediatric Medicine

Background:

Blunt ocular trauma is a significant cause of vision impairment in children.
Optic nerve avulsion is a rare but severe consequence of orbital impact.
Prompt diagnosis and management are crucial for potential visual recovery.

Observation:

A 10-year-old boy experienced sudden vision loss and restricted eye movements after blunt force trauma.
Ophthalmic examination revealed ptosis, limited elevation and adduction, and hazy funduscopic view due to vitreous hemorrhage.
Ocular ultrasonography was performed to assess internal ocular structures.

Findings:

Ultrasonography identified a posterior ocular wall defect, indicating structural damage from the trauma.
A hypolucent area adjacent to the optic nerve head was visualized, consistent with optic nerve avulsion.
The findings confirmed optic nerve avulsion as the cause of the patient's symptoms.

Implications:

This case highlights the importance of high-resolution imaging in diagnosing traumatic optic neuropathy.
Early detection of optic nerve avulsion can guide surgical or conservative management strategies.
Understanding the biomechanics of blunt ocular trauma is vital for preventing such injuries.