Humphrey FDT User Manual
2660021149532 Rev. B 2015-11
Introduction
2-3
Job Requirements
The user should have training and certification in the analysis and treatment of ophthalmic
diseases or other eye-related medical issues as required by governing bodies.
About the User Manual
The User Manual is designed to help you understand the capabilities and operation of the
Humphrey FDT Visual Field Instrument with Frequency Doubling Technology. To achieve
satisfactory results, the operator should read this manual thoroughly before using the
instrument. An FDT Quick Reference Guide is provided for the convenience of experienced
operators.
Instrument Overview
The FDT Visual Field Instrument is an innovative, efficient, compact and affordable
automated visual field testing instrument. Years of research and clinical trials of patented
Frequency Doubling Technology have resulted in an instrument which provides rapid,
clinically validated and user-friendly visual field testing.
Key features of the FDT Visual Field Instrument include:
• Supra-threshold screening tests in less than 1 minute per eye
• Threshold tests in approximately 4 minutes per eye
• Easy to use; no special training is needed/minimal operator instruction
• No corrective (trial) lens needed; patients can wear their own correction or none at all
(must only be within 6D of patient’s refraction)
• No eye patch needed for the opposite (untested) eye - it’s automatically occluded
• Not affected by ambient lighting - can be used in normal room lighting
• Not affected by pupil size (as small as 2 mm)
• Extensive age-normative reference database incorporated
• World-class clinical validation by leading researchers in the field
• Software upgrade capability for future enhancements