Assertion: visual illusion | /r/HasProperty | persistent
Facets:
value: often
type: DEGREE
Source sentences:
text: A pathological visual illusion is a distortion of a real external stimulus and are often diffuse and persistent.
text: Common pathological visual illusions are persistence or repetition of a visual picture following the exterior stimulant is no longer in sight, observing many pictures upon observing one item , transposition of visual pictures from one place to another, and distortion in color comprehension.
text: If the visual illusions are diffuse and persistent, they often affect the patient's quality of life.