Which of the following is NOT a manifestation of psychosis?

Impaired vision is not a manifestation of psychosis. Psychosis primarily affects a person's thought processes and perceptions, leading to symptoms such as hallucinations and delusions, which involve a disconnection from reality.

Hallucinations can include seeing, hearing, or feeling things that are not there, and delusions are fixed false beliefs that remain despite evidence to the contrary. Both of these symptoms illustrate the core components of psychosis, as they directly involve alterations in perception and belief systems.

Social withdrawal, although not a distinguishing symptom of psychosis itself, can occur as a result of experiencing psychotic episodes. People may isolate themselves due to the distress caused by their hallucinations or delusions. Impaired vision, however, is associated with physical or neurological issues rather than the cognitive and perceptual disturbances characteristic of psychosis. Thus, while hallucinations, delusions, and to some extent social withdrawal fit within the framework of psychotic experiences, impaired vision does not relate to those psychiatric symptoms.