幻視

1. Origins, structure, and basic meaning

• Structure: 幻視 is read as げんし and is a noun for a visual hallucination, the perception of seeing something that is not actually present.
• Basic usage: Use 幻視を経験する for undergoing one and 幻視と現実 to contrast hallucination with reality.

2. Common pitfalls and similar expressions

• Specifically visual
  • It focuses on visual perception, whereas 幻覚 can cover hallucinations across the senses; “visual hallucination” preserves this scope.
• Narrative device and factual claim
  • It can describe a fictional character’s experience or a film’s alternating imagery without asserting a real event outside the work.