Disturbances in the visual field occur in every neurosis as the result of anxiety and resistance. The commonest phenomena are contraction of the field, darkening of the field, and diminution of acuity. These disturbances frequently go unnoticed while awake but appear more striking in the imagery of dreams. The author illustrates these phenomena with clinical material and discusses the relationship between them and the defects produced by sensory deprivation experiments. It is suggested that psychogenic visual disturbances are the result of anxiety produced by the threat of separation from an object and that the state of sleep represents such a threat for neurotics.