Visual Field Analyzers & Perimeters
A visual field analyzer, or perimeter, maps how well a patient sees across their full field of vision, plotting retinal sensitivity point by point. It is the cornerstone test for detecting and following glaucoma, and it is equally relevant for neuro-ophthalmic workups, optic nerve disease, ptosis and lid function, retinal disorders, and driving-eligibility (Esterman) assessments. Because a visual field study is repeated over a patient's lifetime to track progression, the analyzer you choose becomes a long-term fixture of your clinical workflow, not a one-time purchase.
As a US ophthalmic equipment provider, we carry visual field systems across both major form factors and every price tier, so you can match the device to your patient volume, subspecialty, and lane space. That includes traditional bowl (projection) perimeters from FREY and Huvitz alongside modern virtual-reality, head-mounted perimeters from Olleyes, in new and certified pre-owned condition. Every system is backed by our in-house technical and repair department, genuine spare parts, calibration support, and US warranty coverage, so the perimeter you buy stays reliable and defensible for years of follow-up testing.
How to choose a visual field analyzer
- Test modality (static vs. kinetic): Routine glaucoma follow-up relies on standard automated (static) perimetry with 24-2, 30-2 and 10-2 patterns. Complex neuro and advanced field mapping may also call for kinetic (Goldmann) perimetry, blue-on-yellow (SWAP), or flicker testing. Match the device's available strategies to the cases you actually see.
- Bowl vs. VR head-mounted design: Bowl perimeters are the long-established clinical standard and often need a dimmed room and a dedicated footprint. VR headset perimeters are compact, portable, and do not require a dark room or eye patching, which suits tight lanes, multi-site use, chair-side screening, and pediatric or mobility-limited patients.
- Fixation monitoring and reliability tools: Trustworthy progression data depends on how well the instrument controls for patient error. Look for blind-spot (Heijl-Krakau) monitoring, gaze and eye tracking, head tracking, and false-positive/negative catch trials so your fields hold up over years of comparison.
- Test speed and patient comfort: Fast threshold algorithms shorten each exam, reduce fatigue, and yield more reliable results, which matters most for elderly, anxious, or pediatric patients. Faster tests also raise throughput when perimetry is a high-volume part of your practice.
- Analysis software, normative data, and connectivity: Confirm the system offers progression and trend analysis against a normative database, plus export or DICOM/EMR connectivity so results flow into your records and stay comparable as you follow each patient over time.
- Budget, condition, and lifecycle support: Decide between a new unit and a certified pre-owned analyzer, then weigh warranty, calibration, and parts availability. Buying from a provider with an in-house service department and spare-parts stock protects your investment long after the sale.
Featured visual field analyzers
Our visual field lineup spans entry-level static perimeters, full static-plus-kinetic platforms, and portable VR headset systems. The table below compares the models we carry so you can shortlist by test modality, form factor, and clinical fit before requesting a quote.
| Model | Type | Best for |
|---|---|---|
| FREY AP-50 | Bowl perimeter, static / suprathreshold | Entry-level automated perimetry for screening and primary eye care |
| FREY AP-250 | Bowl perimeter, static + flicker | Growing practices adding early-glaucoma and flicker testing |
| FREY AP-600L | Bowl perimeter, static + kinetic (Goldmann) | Full-modality perimetry at a value price point |
| FREY AP-600 | Bowl perimeter, static + kinetic (Goldmann) | Glaucoma and neuro specialty clinics needing the widest test range |
| Huvitz HVF-100 | Bowl perimeter, static (Goldmann white-on-white) | All-in-one SAP with automated eye recognition and fixation tracking |
| Olleyes Visual S | VR head-mounted perimeter | Space-saving, fast, portable testing and pediatric or multi-lane use |
Frequently asked questions
What is a visual field analyzer used for? It measures a patient's full field of vision to detect and monitor conditions that damage visual function. Its primary use is diagnosing and following glaucoma, but it is also central to neuro-ophthalmic evaluations, optic nerve and retinal disease, ptosis and lid assessments, and driving-eligibility (Esterman) testing.
What is the difference between a bowl perimeter and a VR headset perimeter? Bowl (projection) perimeters such as the FREY and Huvitz systems are the long-established clinical standard and typically use a dedicated instrument and dimmed room. VR head-mounted perimeters like the Olleyes units are compact and portable, need no dark room or eye patching, and are well suited to tight lanes, mobile testing, and pediatric or mobility-limited patients. Both perform standard automated perimetry.
Which test patterns and strategies should I look for? For glaucoma, the 24-2, 30-2, and 10-2 patterns with a fast threshold strategy cover most needs. Practices handling complex cases may also want kinetic (Goldmann) perimetry, blue-on-yellow (SWAP), or flicker testing, while clinics doing licensing exams should confirm the binocular Esterman driving-field program is available.
Can I buy a certified pre-owned or refurbished visual field analyzer? Yes. We offer visual field systems in both new and certified pre-owned condition, each inspected and calibrated by our in-house technical team and backed by US warranty coverage. Refurbished units are a practical way to add or replace a perimeter while keeping your capital budget in check.
Will a perimeter integrate with my EMR and track progression over time? The systems we carry provide progression and trend analysis against normative data, and support export or DICOM/EMR connectivity so results move into your records. Keeping your visual field data continuous and comparable is essential for documenting change across years of follow-up, which is why device continuity and long-term service support matter when you choose.
