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Visual evoked potentials (VEP) evaluating treatment for post-trauma vision syndrome (PTVS) in patients with traumatic brain injuries (TBI)

P A D U L A   I N S T I T U T E   O F   V I S I O N   R E H A B I L I T A T I O N


Visual evoked potentials (VEP) evaluating treatment for post-trauma vision syndrome (PTVS) in patients with traumatic brain injuries (TBI)

Brain Injury, 1994, VOL. 8, NO. 2. 125-133

 W. V. PADULA, S. ARGYRIS and J. RAY

Table 8.
Statistical analysis of the experimental and control groups (t-test)
Mean 1 (experimental group)
1.375
Mean 2 (control group)
-0.405
Difference
1.760
t-value
3.76
d.f.
18
p-value
<0.01


A t-test (see Table 8) was performed to analyze the significance of using base-in prisms and bi-nasal occluders for the experimental and control groups. Specifically, the increase in the amplitude of the binocular VEP when using base-in prisms and bi-nasal occluders was studied. The results indicated that the use of base-in prisms and bi-nasal occluders produced a large increase in the experimental group, and that the difference was statistically significant (p < 0 - 0 1).

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