Contents
Rare complication after ocular trauma with poor visual prognosis, characterised by separation of optic nerve from sclera by indirect forces due to relatively weak structure of the lamina cribrosa area.
Aetiology
Blunt/penetrating trauma
Through various indirect mechanisms the optic nerve may become detached at the lamina cribrosa, which is the weakest point, due to trauma-related sudden increase in intraocular pressure, sudden posterior displacement of the optic nerve, and strong rotation or anterior displacement of the globe.
- Road traffic accidents
- Sporting accidents
- Falls
Complication
- Vitreous haemorrhage (VH)
Diagnosis
Fundus examination:
- excavation in the optic disc area
CT scan/MRI:
Management
- Steroid therapy
- Vitrectomy