My CT or MRI scan did not reveal a concussion, could I still have had one?
Yes. CT/MRI scans only show results in Major TBIs (less than 10%).
I was hit in the head but did not lose consciousness. Is it possible I still had a concussion?
The vast majority of Acquired Traumatic Brain Injuries do NOT result in a loss of consciousness making diagnosis challenging. Many mild and sub-concussive TBIs go unreported.
How can an eye doctor determine that I previously had a concussion?
The use of the eyes can be used to help diagnose Acquired TBIs. Since the “neural software” of the visual system is intimately woven throughout most of the human brain, a TBI, even mild, can result in visual problems that can dramatically affect the quality of life of the victim. The reaction to “eye movement only” activity can serve as a positive demonstration to the patient and be reassuring to the doctor that the eyes are a factor contributing to their symptoms.
If I have had a concussion, what kind of symptoms might I have?
There are several symptoms of an Acquired TBI. Some are, cognitive (feeling in a fog or visual perceptual challenges) while others affect sleep, others are emotional, and others physical symptoms (such as a headache or vision problems). The multitude and variability of Acquired TBI symptoms make dynamic eye evaluation very important following an acquired TBI.
What are some of the facts known about concussions?
· 50% of concussed high school athletes report complain of dizziness (a visually related symptom).
· 94% of concussed high school athletes report headaches. (a visually related symptom).
· 31% of concussed high school athletes report nausea. (a visually related symptom).
· 54% of concussed high school athletes report difficulty concentrating. (a visually related symptom).
· 36% of concussed high school athletes report Light sensitivity as a visual annoyance problem.
· 39% of athletes report balance disruption in the first week after a sport-related concussion.
What percentage of people have a concussion?
1 ½ % of US Population which is 4-5 mllion per year are reported. It is believed that an equal and additional amount are not reported.
At my school we were required to take a computerized test as a baseline. Will it reveal if I have had a concussion?
It will reveal some, but because it is a static non-moving test it does not address what occurs when you are moving or what you are looking at is moving. Many concussions only cause symptoms when movement is involved.
What occurs in the brain following a head injury?
During an impact, the brain is pushed against the inside of the skull and can be bruised. In addition, different parts of the brain can move at different speeds, producing shearing forces that can stretch and tear nerve tissue. They also alter the balance of ions and chemicals in the brain, which impairs nerve cell function . Secondary injuries are processes activated in the injured brain that can worsen the effects of an Acquired TBI. These kinds of injuries include the production of harmful chemicals called free radicals, inflammation, impaired transport of molecules within nerve cells, and imbalances of key ions needed for nerve function. Blood flow to the site of the injury is also reduced, which hinders the delivery of oxygen and nutrients needed for recovery.
Southern California Training
32771 Calle Perfecto, Suite A
San Juan Capistrano, CA 92675