Weight 250.0000 lbs The Used Zeiss 750 Humphrey Visual Field Analyzer Features: 1.1 GB Hard Drive Streamer Tape Backup Head Tracking Automatic Vertex Monitoring Automatic Pupil Measurement Future Enhancements will include STATPAC for Blue-Yellow, Custom Testing and Kinetic Testing This is the EMS video blog on the Zeiss HFA Visual Field. Remarkably affordable, this product brings visual field testing to any size practice, even the smallest. In addition to fast supra-threshold testing, it also conducts threshold testing complete with statistical analysis in about four minutes.