central retinal artery occlusion Flashcards
1
Q
central retinal artery is branch of
A
ophthalmic artery , which is branch of ICA
2
Q
causes
A
atherosclerosis
giant cell arteritis
3
Q
risk factors - atherosclerosis
A
older age FHx smoking alcohol diabetes htn inacvitiy obesity
4
Q
features
A
sudden painless loss of vision
relative afferent pupillary defect
5
Q
relative afferent pupillary defect
A
pupil in affected eye contricts more when light shone in other eye compared when shone in affected eye
6
Q
fundoscopy findings
A
pale retina
cherry red spot
7
Q
immediate mx
A
ocular massage
remove fluid anterior chamber
inhale carbogen
sublingual isosorbide dinitrate
8
Q
long term Mx
A
treat reversible risk factors
2ry prevention CVS disease
