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Visual Evoked Potentials in Evaluating Sudden Visual Loss in Adolescents: A Psychosomatic Perspective.

Dissociative disorder, previously known as conversion disorder, is a psychiatric illness characterised with sensory or motor signs and symptoms that cannot be associated with neurological or general medical pathology (Ballmaier & Schmidt 2005). It is often connected with conflicts, stress, depression, anxiety and other psychological factors. The most common deficit include paralysis, blindness, pseudoseizures, mutism, deafness, abnormal movements, etc. It is important to distinguish this type of disorder from malingering. In case of malingering, person consciously fakes symptoms in order to achieve certain goals (Blitzstein et al. 2008). Prevalence of conversion disorder varies between studies, and it is estimated that every forth hospitalized patient in general hospital has some symptoms of conversion (Feinstein 2011). Disorder is more common in females, with male to female ratio between 1:2 to 1:10. Its prevalence is also higher in people from rural areas and those of lower education and socioeconomic status (Encyclopedia of mental disorders 2015). In most of the cases this disorder is selflimiting, and 90% of symptoms resolve within a month. However, 25% of patients have new episodes later in life (Blitzstein et al. 2008). Treatment of dissociative disorder depends on clinical symptoms, but usually requires some sort of psychoanalytic or psychodynamic therapy, as well as cognitive behavioral therapy or hypnosis. Medical therapy includes anxiolytics, antidepressants and in some cases antipsychotics