Retinal vascular occlusion following ocular contusion

Abstract

Different patterns of retinal vascular occlusions can occur in ocular trauma. The pathogenesis of these occlusions may be related to direct damage to the endothelium.

Macular infarction and traumatic optic neuropathy following blunt ocular trauma

“…Macular infarction in the setting of blunt ocular trauma has been described rarely. To the best of our knowledge, only 2 cases have been reported previously 2 …”

“…Blunt ocular trauma can result in a myriad of findings including commotion retinae, choroidal ruptures, macular hole, retinal detachment, retinal and vitreous hemorrhage 1 . Isolated cases of retinal vascular occlusions in otherwise healthy patients have been reported in association with ocular contusion 2, 3, 4, 5, 6. We describe an unusual case of macular infarction and traumatic optic neuropathy (TON) following blunt ocular trauma that resulted in severe, irreversible visual loss in a young male.…”

Bilateral simultaneous central retinal artery occlusion following head injury

“…Arterial occlusion following ocular trauma is well known [13][14][15][16]. Simultaneous bilateral CRAO in a young adult is a rare clinical entity and is invariably associated with hypercoagulable state or some systemic trigger factor leading to embolism.…”

Traumatic Optic Neuropathy and Central Retinal Artery Occlusion Following Blunt Ocular Trauma

“…Platelets aggregate around the damaged endothelium, initiating the coagulation cascade and resulting in thrombus formation. Arterial thrombosis and occlusion may be facilitated by local vasospasm of the injured vessel, a natural homeostatic response to trauma [4, 7, 8]. …”

“…Our case suffered complete loss of vision in the left eye from the time of his blunt ocular trauma. This may have been the result of an associated optic nerve injury [3, 4]. …”