Description
This exact unit sold recently — but we specialize in sourcing refurbished ophthalmic equipment. Typical turnaround is 2–4 weeks once we confirm availability with our partners. Request a free quote with no deposit required.
Request Availability → Free quote · No obligation · 90-day warranty when shipped
What’s Included
- Refurbished Humphrey Matrix 800 FDT visual field analyzer main unit
- Patient response button
- Power supply and cables
- Updated software
- 6-month Digital Eye Center warranty
Condition & Warranty
Refurbished. This Humphrey Matrix 800 has been inspected, calibrated, and updated to current software specifications. Covered by a 6-month warranty on parts and workmanship through Digital Eye Center.
Humphrey FDT Matrix 800 — Refurbished Visual Field Analyzer
The Humphrey FDT Matrix 800 is a dedicated frequency doubling technology (FDT) visual field analyzer engineered specifically for rapid, sensitive glaucoma screening. Unlike standard automated perimetry (SAP), the Humphrey FDT platform uses the frequency doubling illusion — a high-contrast, low-spatial-frequency sinusoidal grating stimulus — to isolate the magnocellular pathway and preferentially stimulate the large retinal ganglion cells that are earliest and most severely affected in glaucoma. This makes the Matrix 800 particularly powerful for detecting early field loss before it appears on conventional threshold testing.
Refurbished, calibrated, and updated to current software specifications, this Matrix 800 is ready for immediate clinical deployment. According to the National Library of Medicine, frequency doubling technology perimetry demonstrates high diagnostic accuracy for glaucoma detection, with strong sensitivity for identifying early field defects in at-risk populations.
Why Practices Choose the Humphrey FDT Matrix 800
The Matrix 800 occupies a unique clinical niche: it delivers faster, simpler glaucoma screening than the full HFA threshold test while producing clinically actionable results that are directly comparable across visits. For practices that need to screen high volumes of glaucoma-suspect patients efficiently, the Matrix 800 is the instrument of choice.
- FDT stimulus technology — Selectively stimulates the large retinal ganglion cells most vulnerable in glaucoma; detects field loss earlier than many standard perimetry protocols.
- Rapid testing time — Full threshold test completed in approximately 5 minutes per eye; significantly faster than SAP 24-2 threshold strategies.
- High sensitivity for early glaucoma — Designed to detect subtle defects in the nasal step, arcuate, and paracentral regions characteristic of early glaucomatous damage.
- Simple patient instructions — FDT stimuli are large and salient, reducing false-negative rates in patients who struggle with standard perimetry.
- Glaucoma screening programs — Ideal for community screening, busy glaucoma clinics, and high-risk population monitoring where SAP throughput is a bottleneck.
- Refurbished to specification — Inspected, calibrated, and updated with current software prior to sale; arrives ready for clinical use.
- Compact footprint — Smaller and more portable than full HFA II/III units; fits in a dedicated screening area or mobile clinic setup.
Clinical Applications
The Humphrey Matrix 800 FDT perimeter is purpose-built for the glaucoma care pathway — from screening to ongoing monitoring.
- Glaucoma suspect screening — Rapid FDT threshold testing of patients with elevated IOP, suspicious optic nerves, or family history of glaucoma.
- Early glaucoma detection — FDT stimulus preferentially identifies glaucomatous damage at an earlier stage than standard automated perimetry in many patients.
- Glaucoma monitoring — Longitudinal visual field tracking in diagnosed glaucoma patients to detect progression; results are directly comparable across visits.
- Ocular hypertension management — Serial field testing of ocular hypertensive patients to detect conversion to glaucoma.
- Neurological visual field assessment — FDT perimetry can also be used for neuro-ophthalmic screening where rapid, reliable field mapping is needed.
- High-volume glaucoma clinics — Efficient throughput with shorter testing times enables more glaucoma patients per session.
Who This Is For
The Matrix 800 is the right fit for any practice managing a significant volume of glaucoma suspect and glaucoma patients who need reliable field testing with fast turnaround.
- Glaucoma-focused ophthalmology practices — Dedicated FDT screening lane alongside an HFA for threshold perimetry, or as a standalone screening tool in a glaucoma subspecialty practice.
- Comprehensive ophthalmology practices — Cost-effective complement to the HFA II/III for routine glaucoma suspect screening, freeing the HFA for full threshold testing.
- Optometry practices with glaucoma co-management — Fast, reliable FDT testing supports glaucoma co-management protocols and referral decisions.
- Community glaucoma screening programs — Portable and fast, the Matrix 800 is suited to outreach and population-based screening initiatives.
- Practices replacing aging FDT units — Direct replacement for Humphrey FDT 710 or 715 units at a competitive refurbished price.
Technical Specifications
| Specification | Detail |
| Model | Humphrey Matrix 800 |
| SKU | US-VF-MATRIX |
| Technology | Frequency Doubling Technology (FDT) |
| Primary Application | Glaucoma screening and monitoring |
| Test Speed | Approx. 5 minutes per eye (full threshold) |
| Stimulus | High-contrast low-spatial-frequency sinusoidal grating (FDT) |
| Ganglion Cell Pathway | Magnocellular (large ganglion cells) |
| Condition | Refurbished |
| Warranty | 6 months (Digital Eye Center) |
| Price | $6,600 |
Compare Humphrey Visual Field Analyzer Options
| Feature | Matrix 800 (FDT) | Humphrey HFA 740i | Humphrey HFA 750i | Humphrey HFA 745i |
| Technology | FDT | SAP | SAP | SAP |
| Condition | Refurbished | Refurbished | Refurbished | Refurbished |
| Warranty | 6 months | 6 months | 6 months | 6 months |
| Price | $6,600 | $7,125 | $7,600 | $8,075 |
Similar Visual Fields Analyzers In Stock Now
Need a comparable visual fields analyzer available today? These units are in stock and ready to ship with a 90-day Digital Eye Center warranty.
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