Heidelberg Edge Perimeter (HEP) from Heidelberg Engineering, Inc.

The Heidelberg Engineering Perimeter (HEP) provides 2-in-1 perimetry, which enables clinicians to detect visual field loss at early stage of disease using Flicker-Defined Form perimetry and provides the means to manage progression of the disease at later stages using Standard Automated Perimetry (SAP). The HEP also offers a 30-second screening strategy to balance the demand for a quick visual field assessment with the need for sufficient accuracy in a busy practice. The monitor-based system is proven to deliver equivalent results to a projection-type perimeter, and its compact design allows for ideal fit in every practice.
The HEP uses three different kinds of Adaptive Staircase Thresholding Algorithm (ASTA) strategies and the ASTA Follow-Up tests reduce the test time of follow-up examinations by using data from previous scans to guide the test. Designed to track every stage of disease, HEP offers Functional Change Analysis (FCA), a trend analysis system that monitors subtle change in early disease via FDF perimetry and then manages long-term follow-up for advanced glaucoma using SAP.