1. Have a prior history of strabismus, diplopia, or palsy of CN-III, IV or VI.

2. Be blind (no light perception), have missing eyes, be unable to open their eyes.

3. Have a prior history of ocular motility dysfunction.

4. Have had extensive prior eye surgery.

5. Have any physical or mental injury or baseline disability rendering task completion difficult.

6. Be intoxicated or have blood alcohol level greater than 0.2.

7. Be a prisoner or in the company of a police officer or law enforcement officer pending arrest.

Non-invasive Diagnostic for Assessing Elevated Intracranial Pressure