“…Comparing nasal vs temporal presentations, or superior vs inferior, we observed no significant differences at any eccentricity with a two-tailed, paired t-test at Po0.05, results similar to that of prior studies. 32,39,[44][45][46] Refixations may potentially produce artifacts in the measurement of the acuities at the locations close to fixation. However, for an eccentric stimulus to initiate a saccade in the appropriate direction, it must persist for at least a minimum time of 100-120 ms for detection, 47 after which the saccade would require B20-35 ms to complete the refixation over the angular distance, and thereafter, the target must remain for at least 150-180 m for discriminatory function to ascertain the correct C orientation.…”