Spasm of the retinal vessels in association with unstable primary angina.
D000328:Adult; D000787:Angina Pectoris / Q000150:complications*; D000789:Angina, Unstable / Q000150:complications*; D006801:Humans; D008297:Male; D012171:Retinal Vessels; D013035:Spasm / Q000150:complications*