Description
What’s Included
- Oculus Easyfield C compact perimeter (main bowl unit)
- Power cable
- Patient-response clicker
- Connecting laptop with Oculus software
- Chin rest
- Lens holder
- 90-day Digital Eye Center warranty
Condition & Warranty
Used. Tested in excellent working order, ready to use once received — no additional steps needed. Item has been cleaned. Some signs of usage are visible in the product photos. Software boot tested on the included laptop, and verified to run a complete threshold field on a calibrated reference. Covered by a 90-day warranty on parts and workmanship.
Oculus Easyfield C — Used Compact Perimeter with Laptop
The Oculus Easyfield is a full-fledged compact perimeter that runs central visual field testing up to 30° eccentricity in a footprint that fits any exam lane. This used oculus easyfield C bundle ships with the laptop already configured for the Oculus software, so the unit is operational on day one.
The Easyfield uses an LED grid with 135 fixed test locations, supports the standard 30-2, 24-2, and 10-2 patterns, and runs the SPARK strategy — Oculus’s proprietary fast threshold algorithm that completes a threshold examination in roughly three minutes. The bowl conforms to the Goldmann standard and meets ISO-12866 for perimeters. Glaucoma analysis tools are built in: the Glaucoma Staging Program (GSP), Glaucoma Staging System 2 (GSS 2), and Threshold Noiseless Trend (TNT) for progression analysis.
Per a National Library of Medicine-indexed study (Eur J Ophthalmol, 2013), the Oculus SPARK strategy showed agreement with structural glaucoma assessments by GDx, HRT, and OCT — supporting its role as a reliable functional measure in glaucoma monitoring.
Why Practices Choose the Easyfield C
SPARK threshold in ~3 minutes — meaningfully faster than SITA-Standard equivalents, which matters for chair-time and patient cooperation.- 135 fixed LED test locations — covers the routine 30-2, 24-2, and 10-2 patterns used in glaucoma management.
- Built-in glaucoma staging tools — GSP, GSS 2, and TNT progression analysis included; no separate software license.
- Goldmann-standard bowl — 30 cm radius cone, ISO-12866 compliant, comparable spatial calibration to legacy bowl perimeters.
- Light-shielded design — runs in normal room lighting; no dedicated dark room required.
- Compact footprint — fits in a lane that wouldn’t house a full Humphrey HFA.
- Translucent eye shields — patient comfort improvement vs. traditional opaque occluders, and easier monocular alignment.
SPARK threshold in ~3 minutes — meaningfully faster than SITA-Standard equivalents, which matters for chair-time and patient cooperation.Clinical Applications
- Glaucoma threshold testing — 30-2, 24-2, 10-2
- Glaucoma staging and progression monitoring (GSP / GSS 2 / TNT)
- Neuro-ophthalmology screening for hemianopia and other field defects
- Pre-operative cataract evaluation in patients with concurrent glaucoma
- Routine field screening in optometric practice
- Mobile / satellite clinics that need a perimeter without dedicated dark-room space
Who This Is For
- Optometry and ophthalmology practices building or upgrading a glaucoma workflow
- Practices that don’t have room for a full HFA but still need full threshold testing
- Solo practitioners adding glaucoma management without major facility changes
- Group practices needing a second perimeter to offload demand from the main HFA
Technical Specifications
| Spec | Detail |
| Type | Compact automatic perimeter |
| Test field | Central visual field up to 30° eccentricity |
| Bowl | Spherical, 30 cm (11.81″) radius — Goldmann standard, ISO-12866 |
| Stimulus | LED grid, 135 fixed test locations |
| Patterns | 30-2, 24-2, 10-2 |
| Threshold strategy | SPARK — ~3-min threshold examination |
| Glaucoma tools | GSP, GSS 2, TNT progression analysis |
| Lighting | Light-shielded — runs in normal room lighting |
| Patient interface | Adjustable double chin rest, translucent eye shields |
| Control | External laptop (included) running Oculus software |
| Condition | Used — inspected, software tested |
| Warranty | 90 days (parts and workmanship) |
Compare Visual Field Perimeter Options
| Feature | Easyfield C + Laptop (this listing) | Easyfield + HP Laptop | Easyfield (unit only) | Humphrey 740i Floppy |
| Form factor | Compact bowl, light-shielded | Compact bowl + included laptop | Compact bowl only | Full HFA — needs dark room |
| Threshold strategy | SPARK (~3 min) | SPARK (~3 min) | SPARK (~3 min) | SITA-Standard / SITA-Fast |
| Test patterns | 30-2, 24-2, 10-2 | 30-2, 24-2, 10-2 | 30-2, 24-2, 10-2 | 30-2, 24-2, 10-2 + others |
| Laptop included | Yes | Yes (HP) | No (use existing PC) | Built-in PC |
| Output | Print via laptop | Print via laptop | Print via PC | Built-in printer |
| Condition / Warranty | Used / 90 days | Used / 90 days | Used / 90 days | Refurbished / 6 months |
| Price | $3,850 | $2,530 | $1,650 | $7,125 |
Need the same Easyfield bowl at a lower price point with HP laptop? See the Easyfield + HP Laptop bundle. Already have a workstation? The Easyfield perimeter unit only is the lowest-cost path.
Questions about the Oculus Easyfield C? Contact us to confirm software version, laptop OS, and freight quote — call 305-771-4562 or use the contact form.
