Abstract

The ”persistent vegetative state” has the main attention for us in identifying the examples of consciousness that suffer structural injury. PVS is a state that the patient has the ability to open eyes spontaneously, but without responses to threat, verbalization or other pain defend. Several factors that lead to such state, among which the use of drugs is mostly researched, prolong impaired consciousness as a clinical and personal judgment of this condition. The patients with comatose from a destructive structural injury never regain the conscious state due to widespread structural damage. Any clinical review on this is based on bodily changes observation with impact on the clinical diagnosis of prolonged comatose states as largely descriptive. Eye movements need the most attention because its response to approaching objects distinguishes between a PVS, akinetic mutism, and MCS. Distinguish between this three conditions needs an interdisciplinary intervention.