This test is specific of the magnocellular system which is first affected at the early stage of glaucoma.
The standard report for SAP includes:
• a modern graphic display combining the position and values of measurements with a true grey scale map
• a 3D representation for a better understanding of the topography of the field
• a statistical analysis with comparison with normative data
• global indexes (mean defect, ..) as well as information about the reliability of test (fixation errors, attention errors)
This test provides an objective response from the ganglion cells.