PURPOSE:To determine the effect of reducing spatial uncertainty by attentional cueing on contrast sensitivity at a range of spatial locations and with different stimulus sizes. METHODS:Six observers underwent perimetric testing with the Humphrey Visual Field Analyzer (HFA) full threshold paradigm. and the output thresholds were compared to conditions where stimulus location was verbal... https://www.bekindtopets.com/limited-offer-Silver-Lining-Herbs-Kidney-Support-super-offer/