Temporary vision loss due to Aura or Amaurosis Fugax, how to tell the difference:
Aura:
• Visual symptoms in both eyes
• Symptoms increase gradually over time
• Symptoms also include “positive” phenomena as in bright lights like seeing
sparkles, zig-zag lines, colors as seen though a kaleidoscope
Aura is commonly associated with a migraine, however some patients experience only Aura in which case it may be called an ocular migraine
Amaurosis Fugax:
• Visual symptoms in one eye
• loss of vision is usually sudden, there are dark patches
• No positive phenomena as in Aura
Amaurosis Fugax can be associated with loss of blood flow to the retina, possibly due to a plaque, the risk of this is higher if the eye pressure is raised as in uncontrolled glaucoma
IF you are concerned about a retinal detachment, you can find further details here.