Field Screeners

Unfortunately, we don't have any products available in this category at the moment. Stock available soon.


The testing of a patient’s visual field, also known as perimetry, is achieved using a field screener. A field screener analyses a patient’s field of view or peripheral vision. In using a field screener, one can screen, diagnose and monitor a range of optical conditions, including glaucoma and detachment of the retina.

Hanson Instruments offer a range of field screeners for sale, as well as the option to upgrade systems with more modern features and functionality.

For example, if you have any of the following items Henson 6000, Henson Pro 5000, Dicon LD400, Dicon TKS 5000 or Oculus Easyfield that are working on old technology, hand controllers that are failing or old operating systems?  Contact us to find out how we can save you money by upgrading rather than buying new.

Also, if you need to change your operating system from Windows XP but your software won’t work on Windows 10 – Call us now to see if an upgrade is available for your equipment.

We can also sell reconditioned field screeners, like the Zeiss Humphrey 720i Visual Field Analyser, which can perform Threshold visual fields in as little as 2 minutes, SITA sensitivity, reproducibility & accuracy has been shown in clinical testing. The Zeiss Humphrey 720i has been shown to provide earlier detection of glaucomatous visual field loss. It’s Ideal for those patients who are wheelchair bound as it’s wheelchair accessible and its award-winning ergonomic design allow maximum comfort for all patient body types.

The ZEISS Humphrey FDT, is another field screener we can sell reconditioned. The FDT is a breakthrough in visual field testing that's so efficient it can even be used in pre-testing. The Zeiss FDT produces screening results in only 45 seconds and full threshold results in under 4 minutes per eye.  Weighing only 19lbs, the FDT is the most portable and user friendly automated visual field instrument

Another field screener that we can sell reconditioned is the Oculus Easyfield Compact Visual Field Screener. The Oculus Easyfield offers an Ergonomic design and is easy to operate. It has an Increased Diagnostic Reliability too. The Oculus Easyfield is designed for use as a visual field screener and a threshold perimeter. Fully compliant with Goldman Standards.