How typical are micropsia and alice in wonderland syndrome in children?

No good data: This is not quite rare, but also not common. It is more often reported in children but can occur at any age. It is not a mental illness, but a physical perceptual distortion and is usually not part of a dangerous condition. It may be associated w/ migraines or tle and a neurologist might help. Try not to worry about 'craziness' - it is not that. Wish i could offer #s, but i can't.

It's both rare & probably: under-reported. A pediatric Neuro-Ophthalmologist at Children's Hospital of Philadelphia reported that 25% of his 50 patients with AIWS seen over 10 years developed migraines; 1, seizures. Visual distortions, micropsia & macropsia, of one's body parts & of objects rarely persist to adulthood. Functional MRI during an episode shows hypoactivity of occipital & hyperactivity of parietal lobes.