arteriovenous nicking

ar·te·ri·o·ve·nous nick·ing

constriction of a retinal vein at an artery-vein crossing.
Mentioned in ?
References in periodicals archive ?
Approximately 15% were found to have focal arteriolar narrowing, 14% to have arteriovenous nicking, and 7% to have other microvascular abnormalities such as hemorrhages, exudates, and microaneurysms.