Retrograde flow in left ophthalmic artery on carotid doppler
Transient Left Eye Blindness after Exercise This 73 year old male with a history of transient left eye blindness after exercise had a carotid Doppler with evaluation of the ophthalmic arteries. What is the abnormality and what is the anatomic reason?
I don't know how to read these carotid dopplers, based on age, I'm assuming Amaurosis Fugax, a carotid atherosclerotic emboli??
So the right eye shows normal systolic and diastolic flow patterns over the horizontal line, whereas the left eye it's below the line. Is this a reversal is flow, possibly caused by vertebral steal syndrome? If the patient was exercising, the blood would reverse flow compromising brain perfusion for increased demands due to exercise.
Is the cerebral artery stealing from the opthalmic artery during exertion due to LT ICA occlusion? I believe it exists to help to protect the brain from ischemia.
Vertebral steal syndrome on the left side
Radiology And Nuclear Medicine
Thanks everyone! Click this link for the answer, with a diagram by yours truly, and brief discussion: http://goo.gl/AaGrS4
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