Visual Hallucinations
A hallucination occurs when a person becomes aware of something that is not actually present, for example hearing a voice that is not there. Visual hallucinations relate specifically to the person believing they can see something, that is not there. There are different types, some very detailed and clear like seeing a person who is not present. Other visual hallucinations may be of lights or colours or patterns that are also not real. Further reading: Lesson 11b Visual Hallucinations