The Computerised Visual Field: The Complexities of its Analysis, A Literature Review

Helen Goodacre, DipAppSc (Cumb), DOBA

Computerised perimetry has revolutionised the examination of the visual field by its ability to provide reproducible quantitative threshold measurements of the ‘hill of vision’. There is a growing body of research describing the complexities of obtaining these precise measurements and interpreting the information obtained the computerised visual field printout. This report aims to extend the orthoptist’s knowledge of how to interpret the computerised field printout. It presents an overview of current research, describing the factors that cause variation in threshold measurement, and methods that can be sued to determine the presence or absence of visual field defects. Clinical examples using the Humphrey Visual Field Analyser are included to demonstrate important concepts.