Please enable JavaScript.
Coggle requires JavaScript to display documents.
Intraop visual loss (Risk factors (Pre existing eye compromise, HTN, DM,…
Intraop visual loss
Risk factors
Pre existing eye compromise
HTN
DM
Smoking
Atherosclerosis
Long surgery
hypercoagulable
Causes
Nerve
Ischaemic optic neuropathy
Reduced blood flow V=IR
arterial hypotension
elevated venous/intraocular pressure (prone)
increased resistance to flow
decreased O2 delivery
Vessel
Central retinal artery thrombosis (CRAO)
External pressure on eye/trauma
Emboli
More likely unilateral
Brain
Cortical blindness
Occipital cortex problem
Stroke/TIA
ICH
Preexisting problem
MS (optic neuritis)
Ocular problem
Management
Suspect in all who complain of visual loss on emergence
Urgent refer opthalmologist
If likely thrombosis - ECG, carotid ultrasound
Treatment depends on cause
Prognosis is poor