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Kaplan Qbank USMLE



Author5 Posts
  #1

What are the causes of Amaurosis fugax? How is the prognosis?

  #2

both amaurosis fugax and retinal detachment produce a sensation of a curtain passing across the visual, how do you differentiate them?

also

How would differentiate retinal artery occlusion versus retinal vein occlusion?

  #3

it is caused by retinal emboli from ipsilateral carotid disease.
it is described as a curtain passing vertically across the visual field with complete mono ocular visiual loss lasting a few minutes and a similar curtain effect as the episode passes.

  #4

In RD blurred vision in one eye becomes progrssively worse.Ophthalmoscopy shows retina hanging in the vitreous like a gray cloud..
CRVO: severity of visual loss is variable.The visual impairment in first noticed upon waking in the morning. Ophthalmoscopy--- disk sqelling,venous dilation and tortuosity, retinal hemorrhages and cotton wool spots.
CRAO: sudden profound visual loss. Ophthalmoscopy pallid swelling of the retina with a cherry red spot at the fovea.

  #5

thank you, doc4mindia, good luck!







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