TRS-3100 Digital Refractor
The digital refractor for a compact lane
The TRS-3100 gives you digital refraction in a smaller, lighter package than the 6100. It connects wirelessly to your Marco autorefractor, auto lensmeter and EMR, and its compact refractor head covers less of the patient's face, which patients notice. A 40-degree visual field keeps their view of the room natural, and the refinements go down to one degree of axis.
What it does
- 5.7-inch color LCD touchscreen controller
- Compact, ergonomic refractor head that covers less of the patient's face
- 40-degree wide visual field for a more natural view
- Axis refinement in 1 to 5 degree steps; prism in 0.1 to 1.00 steps
- Independent right and left PD adjustment
- Automatic power convergence and power PD adjustment during near point testing
- Built-in Intelligent Card reader for data transfer
- Antifogging protective glasses and detachable forehead rest and face shields
Is it right for your practice?
Best fit
Practices that want automated refraction without rebuilding the lane around it, and rooms where the 6100's footprint is more than there is space for.
Why consider it
It does the core job of a digital refractor at a smaller scale: fast, repeatable, one-handed, connected to pre-test and EMR, run from a 5.7-inch touchscreen. The compact head covers less of the patient's face and the 40-degree visual field keeps the room visible around the instrument, so patients who find a phoropter claustrophobic tend to do better with this one. Axis refines in one-degree steps and the right and left PD adjust independently.
What to compare
Against the TRS-6100, you are giving up the larger control surface and the tilting screen for near testing, and the 3100 is not the refractor inside the EPIC workstation. If you expect to build a full pre-test and refraction workstation within a few years, buying the 6100 now keeps that path open. Against staying manual, compare it with the RT-700: if you prefer manual refraction and are not looking to be talked out of it, automation is not an upgrade you will enjoy.
Ask me about
Whether your exam room can take the 6100 once the chair and stand are placed, and what the difference between the two comes to once pre-test integration is quoted for both.
Specifications
| Sphere | -19.00 to +16.75D (0.25 / 0.50 to 3.00D increments) |
|---|---|
| Cylinder | 0.00 to ±6.00D (0.25 / 1.00D increments) |
| Axis | 0° to 180° (1°/5° increments) |
| PD | 48.0 to 80.0mm (far mode) 50.0 to 74.0mm (near working distance of 35 cm) 54.0 to 80.0mm (far PD possible for 100% convergence) |
| Rotary Prism | 0.0 to 20.0 ∆ (0.1 / 0.5 / 2.0 ∆ increments) |
| Cross Cylinder Lens | ±0.25D |
| Occluder Pinhole Plate | 2.0mm |
| Red Maddox Rod | Right eye: horizontal, Left eye: vertical |
| Red/Green Filter | Right eye: red, Left eye: green |
| Polarizing Filters | Right eye: 135˚, Left eye: 45˚ / Right eye: 45˚, Left eye: 135˚ |
| Fixed Cross Cylinder Lens | ±0.50D |
| Spherical Lenses for Retinoscope | +1.50 / +2.00D |
| Dispersion Prism | Right eye: 6 ∆ BU, Left eye: 10 ∆ BI* |
| Refraction Distance for Near Vision | 350 to 700mm (selectable in increments of 50mm) |
| Visual Field | 40˚ (VD = 12mm) |
| Forehead Rest Adjustment | 14 ±2mm |
| VD Scale | 12, 13.75, 16, 18, 20mm |
| Horizontal Level Adjustment | ±2.5˚ |
| Display | 5.7in Color LCD |
| Printer | Built-in |
| IC Reader/Writer | Built-in |
| Power Supply | AC 100 to 240 V |
| Power Consumption | 80 VA |
| Refractor Head Main Body | (MB) 13.98 (W) x 3.94 (D) x 10.87 (H)” (without bracket) / 7.72 lbs. |
| Control Box | (CB) 6.30 (W) x 8.23 (D) x 6.50 (H)” / 3.75 lbs. |
| Relay Box | (RB) 7.64 (W) x 8.94 (D) x 2.40 (H)” / 4.40 lbs. |
| Standard Accessories | Near point card, Near point rod, Forehead rest, Face shield, Stylus pen, Dust cover, Communication cable (MB-RB, CB-RB), Printer paper (3 rolls), Power cord, Operator's manual |
| Optional Accessories | Intelligent Cards (5 cards/set) |
Worth comparing
TRS-6100 Digital Refractor
Automated refraction with a remote touchscreen and ergonomic keyboard, operable with one hand. Shows the patient their current and new prescription side by side.
TS-610 Tabletop Refractor & Chart System
Chart and TRS-6100 refractor integrated into one tabletop unit. The FARS configuration adds voice-guided testing the patient runs themselves, with the practitioner completing a final check.
Infinity Refraction Software
PC control software that lets the refraction be driven from across the room, the next room, or another location entirely. Purchased outright rather than subscribed.
Specifications reviewed: 2026-09-06
Manufacturer source:
Marco: TRS-3100 Digital Refractor.
Configurations and specifications change. Ask me to confirm before ordering.
Talk it through with me
Tell me how your practice handles this now and what you want it to do, and we can work through the options together. You do not need to have settled on a product first.