Humphrey Zeiss Field Analyzer 840

Guided Progression Analysis (GPA) provides an overview of
the patient’s entire visual field history, streamlines workflow and
can improve clinical confidence. GPA simplifies and standardizes analysis of
changes in glaucomatous visual fields. It highlights any changes from
baseline that represent larger than expected clinical variability and
provides plain-language messages whenever changes show consistent
and statistically significant loss.

Specifications
Condition Used
Maximum temporal range (degrees) 90
Stimulus duration 200 ms
Visual field testing distance 30 cm
Background illumination 31.5 ASB