3amygd - vicissitude

[ArchivalUser]

What is the site of the lesion in a middle age pt with œa window shade coming down experience for 10 min of her left eye has hyperten. tx with propranolol, BP of 140/90, visual acuity 20/20 bilaterally, neck bruit over the left side, normal neurologic exam?
1. Optic tract
2. Optic radiation
3. Optic chiasm
4. Retina
5. Lens
6. Occipital cortex

[ArchivalUser]

-4

[ArchivalUser]

any one else

[ArchivalUser]

explain

[ArchivalUser]

more key words

[ArchivalUser]

This is amaruoxis fugax affecting the central retinal A.,So retina is affected?

[ArchivalUser]

Amaurosis fugax is a short-lived episode of blindness in one eye (monocular). This symptom usually develops suddenly, and many individuals describe the event as "it was as if a shade or curtain came over my eye." It is caused by a blockage or low blood flow within the main blood vessel supplying the eye. Blockages are usually due to a blood clot or plaque (small piece of cholesterol) that breaks off from a larger artery and travels upward to the brain or eye, becoming lodged in the main artery supplying the eye. Low blood flow to the eye may also result from a critical narrowing of one of the main blood vessels supplying blood to the brain and eye. The monocular blindness of amaurosis fugax is generally brief, but in rare cases it may be prolonged or permanent.

[ArchivalUser]

thanks whiteblue for great explanation and these pt's are throwing away clots from ipsilateral carotid artery and we should deal wih that by proper investigation by doppler usg and pt with less than 70% occlusion will be helped by carotid end arterectomy.