Conclusions
Automated alternate cover test by VOG offers an objective and
quantitative skew measurement and proved to be accurate in measuring
vertical eye misalignment. Precision was moderate, which mandates a
sufficient number of tests per subject. VOG could serve in the future as
a quantitative, complementary test for the ACT with prism, thus allowing
for its use not only by experts but also by non-experts. Furthermore, it
could be used as a future point-of-care diagnostic test for patients
with an acute vestibular syndrome in the ED.