Humphrey FDT
Expanding your field of vision. ZEISS Humphrey FDT

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Humphrey FDT

  • Highlights
    Humphrey FDT 400

    Humphrey FDT - Frequency Doubling Technology for efficient visual field loss detection


    Clinically validated

    The Humphrey FDT® is ideal for clinics desiring to identify patients in need of ophthalmological referral. It has been clinically validated in more than 170 peer-reviewed publications.

    Easy to operate and interpret
    The FDT is optimized for use in both ophthalmological and non-ophthalmological settings and
    may be operated by healthcare workers having little or no specialty training in ophthalmology.

    • Patients may be tested using their own glasses, no requirement for trial lenses or eye patches1
    • Short test: ~ 40 seconds per eye
    • Simplified interpretation of results
    • Large, age-related normative database
    • Compact design that fits anywhere in your practice
    • Easy and intuitive operation for users of any level of experience
    • Dependable performance in ambient light
    • Convenient low-cost, built-in printer*

     


    *FDT does not include electronic connectivity.

  • Technical Data
    Specifications
    Test Specifications

    Maximum temporal range (degrees)

    30

    Stimulus duration

    300ms

    Visual field testing distance

    Infinity

    Background illumination

    100 cd/m2
    Threshold test libraries C-20, N-30
    Threshold test strategy MOBS
    Screening test libraries C-20, N-30
    Screening test modes Age corrected
    Fixation control
    Heijl Krakau blind spot monitor
    Operator interface (display) LCD
    Stimulus Frequency doubling
    Stimulus sizes 10°
    Printer Thermal printer
    Dimensions

    Height

    17'' (43 cm)

    Width

    10'' (25 cm)

    Depth

    19'' (48 cm)

    Weight

    19 lbs (8.6 kg)
    Electrical requirements 100-120 V, 50/60 Hz
    230 V, 50/60 Hz
    Standards Meets UL, CSA, and CE standards
  • Services

    OPTIME from ZEISS

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  • Downloads

    Detect vision loss from ocular diseases Humphrey FDT Perimeter

    Simple, Reliable, Proven

    page(s): 6
    file size: 699 kB

    Humphrey FDT Data Management Goals and Solutions

    Application Note

    page(s): 2
    file size: 1,284 kB

    Adjunctive Use of FDT in Detection of Ocular Disease

    Commentary on a paper by Ravi Thomas et al(1) By Dr. Vincent Michael Patella

    page(s): 8
    file size: 75 kB

    The Humphrey FDT: Analyzing the FDT Screening Printout

    Application Note

    page(s): 8
    file size: 850 kB

    Humphrey Matrix and Humphrey FDT from ZEISS

    Compendium of peer-reviewed, published clinical articles

    page(s): 64
    file size: 1,083 kB

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Related Products

  • 1 Trial lenses are required beyond ± 3 diopters for the Matrix and beyond ± 7 diopters for the FDT.