glare - a light within the field of vision that is brighter than the brightness to which the eyes are adapted; a glare of sunlight brilliance, blaze brightness - the location of a visual perception along a continuum from black to white
Pica is typically defined as persistent ingestion of nonnutritive substances for at least 1 month at an age for which this behavior is developmentally inappropriate. The definition is occasionally broadened to include the mouthing of nonnutritive substances.
It is very technical but donât be put off by that. A relatively new illness that appears to mimic MSA is Fragile X-associated Tremor/Ataxia Syndrome (FXTAS) and I think it is important for possible sufferers of MSA to check this out, especially if anxiety is a major factor in the illness.