Visual field testing
TEMPO (CREWT Medical Systems, Tokyo, Japan) is the commercial name of the product. It is distinct from the portable head-mounted perimeter device known as imoFor the current study, all patients underwent HFA 24–2 SITA-Fast and TEMPO 24–2 AIZE-Rapid on the same day in a randomized order using Goldmann size III (0.431° visual angle) stimuli. Since the purpose of this study was to compare HFA and TEMPO, no exclusions were made at specific cutoff values for reliability indices (fixation losses, false negatives and false positives) for both devices. The binocular random testing mode was selected for testing with TEMPO. In addition, to evaluate usability for patients, there was a questionnaire, as follows: (1) Which device do you prefer?, (2) Did you have any difficulty with the simultaneous examination of both eyes using the novel device?, (3) Was the screen easy to see?, (4) Was it easy to concentrate?, (5) Was the test time short?. These questions were assessed using a 5-point Likert scale.