Case Report
Volume 12 Issue 12 - 2021
Direct Traumatic Optic Neuropathy Secondary to Harpoon Injury
Gözde Koçak1* and Elif Betül Türkoğlu2
1Ödemiş State Hospital, Izmir, Turkey
2Akdeniz University, Antalya, Turkey
*Corresponding Author: Gözde Koçak, Ödemiş State Hospital, Izmir, Turkey.
Received: August 09, 2021; Published: November 17, 2021


Traumatic Optic Neuropathy (TON) is a severe vision threatening condition that develops following ocular and cranial trauma. It is classified into direct and indirect injury regard to mechanism of occurence. Low-velocity, small diameter penetrations may cause significant orbital and even intracranial damages, despite negligible entry wounds through the eyelids or conjunctiva. Tough sclera and abundance of intraorbital fat tissue, partially allows for movement, protect the globe from dangers and lead to delays in diagnosis. Decreased visual acuity and relative afferent pupillary defect (RAPD) were the only signs of optic nerve damage in our 56-year-old female patient, who was evaluated as direct TON as a result of a harpoon injury. Conjunctival nasal laceration and corneal epithelial defect were present. Eye movements were free in all gaze. Indirect ophthalmoscopy and Orbital Computed Tomography (CT) were normal. We had a lucky! response with the oral steroid treatment that we started on the fifth day. We evaluated TON mechanisms of occurence and treatment options in our case. We aimed to draw attention to the careful evaluation of visual acuity and RAPD and the use of imaging methods; in order not to miss orbital and cranial damage in eyelid and conjunctival lacerations in the medial canthus region.

Keywords: Traumatic Optic Neuropathy (TON); Relative Afferent Pupillary Defect (RAPD); Computed Tomography (CT); Harpoon Injury


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Citation: Gözde Koçak and Elif Betül Türkoğlu. “Direct Traumatic Optic Neuropathy Secondary to Harpoon Injury”. EC Ophthalmology 12.12 (2021): 41-45.

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