2.7.2. Melbourne Rapid Fields (MRF)

This is a web-based program that relies on a touchscreen tablet. Voice prompts of multiple languages are available. The subject is asked to sit 33 cm away from the screen and fixate at a crosshair target. There is a square area that the subject is supposed to tap whenever a stimulus is seen. The stimuli are presented as dots of various intensities in different locations, similar to SAP. When using a small tablet, the fixation target may shift to a corner of the screen to widen the visual field area tested (to up to 30 degrees from fixation). The MRF test takes approximately 3–4 min per eye, which is significantly shorter than the Humphrey Visual Field 24-2 SITA-standard program (average 6–7 min per eye) [58,59]. After completion of the MRF test, a report is generated, showing the reliability indices, the sensitivity value of each spot, the total deviation map, the pattern deviation map, and the visual field gray scale. Multiple studies have shown that MRF has a low retest variability and high correlation with the Humphrey Field Analyzer [58–61].
