In the movie, Kyle (Bradley Cooper) says he's 30 when he enlists, but the American Sniper true story reveals that the real Chris Kyle reported to the Navy for basic training in February 1999 when he was 24-years-old. -American Sniper book.
ELECTRO/VIDEO-NYSTAGMOGRAPHY (ENG OR VNG) Electronystagmography (ENG) refers to a group of tests or test battery, and uses small electrodes placed over the skin around the eyes during testing. Videonystagmography (VNG) refers to the same test battery run using goggles with video cameras to monitor the eyes.
A field is reviewed by masked, certified readers at the VFRC and considered abnormal if the PSD index is outside the normal 5% level or if the Glaucoma Hemifield Test (GHT) is 'outside normal limits.'An abnormal visual field is defined as having a GHT 'outside normal limits' and/or a Pattern Standard Deviation (PSD) worse than the normal 5th ...