A 60-year-old male presents with sudden onset of complete loss of vision in both eyes. He has no pain. His pupils are reactive. Fundoscopy shows bilat...

Question

A 60-year-old male presents with sudden onset of complete loss of vision in both eyes. He has no pain. His pupils are reactive. Fundoscopy shows bilateral papilloedema. He has a known history of idiopathic intracranial hypertension. What is the mechanism of visual loss?

Accepted Answer

Bilateral optic disc swelling from raised intracranial pressure compressing the optic nerve fibres at the lamina cribrosa - this can cause sudden visual deterioration requiring urgent CSF diversion

Answer

Bilateral central retinal artery occlusion

Answer

Malingering - reactive pupils exclude organic visual loss

Answer

Cortical blindness from bilateral occipital infarcts

Answer

Bilateral retinal detachment

uk-dipimc MCQ (SBA): IIH - Acute Visual Loss

A 60-year-old male presents with sudden onset of complete loss of vision in both eyes. He has no pain. His pupils are reactive. Fundoscopy shows bilateral papilloedema. He has a known history of idiopathic intracranial hypertension. What is the mechanism of visual loss?