It could be a massive blow to the head, a casual bump or excessive shaking that cause head injuries in people. After an incident that could lead to a head injury, it is always prudent to watch out for vomiting, unconsciousness, unexplained mood changes, dilation of eyes, disorientation, memory loss and other similar abnormal changes in the body as it could be an indicator of a possible injury to eyes as well. In the event such symptoms are observed, patients should be given urgent medical attention to safeguard from a possible worsening of the situation.