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To compare the results obtained by a new ultra-short automated perimetry test known
as Tendency-Oriented Perimetry (TOP), which is an algorithm based on estimation of
thresholds from information gathered from adjacent points with those obtained by a
standard bracketing approach. TOP is designed to save up to 1/5 of the time taken
by standard strategy by presenting each stimulus once on each location (instead of
4 to 6 times per location with the standard technique) and reaching a final threshold
estimate by gathering information from responses to adjacent locations.