Static perimetry: accuracy and fluctuations.
Threshold fluctuations are divided into short-term and long-term effects applying statistical methods. Sixteen normal and pathological visual fields were analysed in order to obtain values for the short-term, long-term and total fluctuations. Special attention is paid to fortuitous variations between the results obtained at successive examinations. Finally the concept of spatial correlations is introduced.
D006801:Humans; D013997:Time Factors; D014792:Visual Acuity; D058609:Visual Field Tests / Q000379:methods / Q000592:standards*; D014794:Visual Fields