Heijl A, Patella V, Bengtsson B (2012) The Field Analyzer Primer: Effective Perimetry. Carl Zeiss Meditec, Inc. [Accessed Jan 2023]
Click https://www.zeiss.co.uk/content/dam/Meditec/gb/Chris/OCT%20Business%20Builder/2020-updates/effective_perimetry.pdf link to open resource.