Summary: Repeated episodes of transient visual loss (black outs) of the right eye, lasting for 5-10 minutes while either standing or sitting.
72-year-old with 4 episodes of vision loss.
Inquiry: Bilateral vs Unilateral
5 - 10 minutes apart.
Inquiry: Episode Characteristics
Complete black out of vision
Inquiry: Activity during the episode
Episodes occur during both sitting and standing.
Inquiry: Pattern of visual loss
4 episodes, 2 episodes involved the lower half of vision, the other 2 involved the central visual field blacking out
Inquiry: Other Symptoms
Inquiry: Current Medication
History is significant for a history of coronary artery disease, for which he received stents earlier in the last year.
Laboratory testing: echocardiogram revealed normal heart ventricular size and motion, normal heart valves and normal contrast study. Carotid Duplex ultrasound revealed 0-40% narrowing of both carotid arteries with calcified plaque, but normal flow on each side.