交差現象

英

crossing phenomenon, crossing phenomena

同

網膜動脈交差現象？

• http://www.1stretinalscreen.com/ra_DR_NonDR.asp
• AV nipping is indicative of hypertension and describes the changes which occur at arteriovenous crossings in the retina where an artery crosses a vein. In patients with hypertension and associated arteriolosclerosis (narrowing of the artery) the artery applies increased pressure on the vein at the point where it passes over the top of the vein.