Abnormalities of the retinal vessels Flashcards
narrowing of the arteriole, occurs with hypertension
constricted arteriole
widening of the light reflex and a coppery color; occurs with hypertension
copper white arteriole
opaque or silver appearance caused by thickening of arteriole wall
silver wire arteriole
vein appearing to stop short on either side of the arteriole, caused by loss of arteriole wall transparency from hypertension
arteriovenous nicking
vein appearing to taper to a point on either side of the arteriole ; caused by loss of arteriole wall transparency from hypertension
arteriovenous tapering
twisting of the vein on the anteriole’s distal side and formation of the dark, knuckle like structure
arteriovenous banking
also known as soft exudates, cotton wool patches have a fluffy cotton ball appearance, with irregular edges
cotton wool patches
solid, smooth surface and well defined edges; creamy yellow white, small, round spots typically clustered in circular, linear or star pattern
hard exudate
appear as small flame shaped, linear red streaks on retinal background
superficial retinal hemorrhages
appear as small, irregular red spots with blurred edges on retinal background
deep retinal hemorrhages
round, tiny red dots with smooth edges on the retinal background; localized dilations of small vessels in retina but vessels are too small to see.
microaneurysms