Marco TRS-3100 Automated Refraction System

Brand: Marco

SKU: RT-3100

The Marco TRS-3100 Automated Refraction System can streamline your workflow and increase practice efficiencies.

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The Marco TRS-3100 is a feature-streamlined instrument that offers completely wireless interface with your autorefractor and auto lensmeter. The built-in IC card reader allows for seamless integration and connection without any cable logistics. Used in a traditional lane, it reduces refraction time and can be networked into a paperless EMR system. Positioned aggressively, this system features a dedicated real time processor that delivers outstanding operational speed, responsive specificity of function, tremendous simplicity of use, and the security of sustained performance integrity, and 40 years of Marco Customer Care Support in the refraction equipment industry.

Sold exclusively through Marco.


  • Compact and the ergonomic design that covers less of the patient’s face, offering a more comfortable examination.
  • Convergence and PD – During near point tests, power convergence and power PD are adjusted automatically. PD can be adjusted independently for more accurate and reliable measurements.
  • Wireless interface with Marco autorefractors and autolensmeters – The built-in Intelligent Card (IC) Reader allows seamless integration without cable constraints and costs.
  • 5.7 inch LCD color monitor that gives enhanced, illuminated detail with touch screen function. The compact design of the keypad maximizes work-space and user comfort, avoiding the risk of shoulder and neck injury.
  • The S/C/A Mode keys in the center of the dial allow the operator to quickly refine sphere, cylinder, and axis using only one hand.


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)