‘I see animals by my bed that aren’t there’

Mabel, an 83-year-old woman, is brought in by her worried daughter Susan, after reporting seeing animals and people at the end of her bed.
This started around three weeks ago and occurs most days. The hallucinations are not causing Mabel any distress or anxiety.
There are no associated auditory hallucinations or acute cognitive decline. When questioned, Mabel says she knows that the people and creatures she’s seeing are not actually present.
Mabel denies associated headache, falls, blurred vision, unsteadiness or localised limb weakness.