Does anxiety cause visual disturbances like hallucinations?

See, it's stress: The effect of stress cannot be underestimated as a cause of neurological symptoms, including all sorts of hallucinations. But emotional causes should not be assumed until other, potentially dangerous, causes of hallucinations are excluded by testing. Most visual hallucinations are organically caused, ie not stress-related.

Not hallucinations: Anxiety, when severe enough as in a panic attack, can cause "tunnel vision" where all you see is that which is in front of you. This is due to the effects of adrenaline. Sometimes on can feel that they are out of their body or the situation is not real. Anxiety does not cause auditory hallucinations (hearing voices talking) or visual hallucinations (seeing figures others don't see).