Carl Zeiss Humphrey FDT Visual Field
The Humphrey FDT Perimeter uses Welch Allyn Frequency Doubling Technology to provide a clinically verified, fast and affordable means of detecting early visual field loss. The perimeter is the ideal glaucoma screening device because it conducts supra-threshold testing in only 35 seconds per eye.
Remarkably affordable, the FDT Perimeter brings glaucoma testing to any size practice, even the smallest. In addition to fast supra-threshold testing it also conducts full threshold testing complete with statistical analysis in about 4 minutes.