The influence of visual field testing procedure on blind spot size.
Blind spots as measured by three different testing instruments were shown to be significantly different. These size variations seem to be related to the target contrast provided by the instrumentation. The need for instrument standardization in perimetry is discussed.
D000328:Adult; D005364:Field Dependence-Independence; D006801:Humans; D009898:Optic Disk; D058609:Visual Field Tests / Q000295:instrumentation / Q000379:methods* / Q000592:standards