Small Pupil Zone Measurement
The Tonoref II ARK with Tonometry can measure through a pupil as small as 2mm. It utilizes a Pupil Zone Imaging Method that includes a wider area (max. 4mm) to obtain measurements closer to the refraction through a mesopic pupil.
SLD vs. LED Technology
Super Luminescent Diode (SLD) technology offers advantages over other measurement methods by using brighter illumination to better read through media opacities, providing a more consistent measurement. The result is a more consistent and repeatable measurement, even with challenging patients.
Fully Automatic Eye-tracking system
The Tonoref II ARK with Tonometry is entirely automatic, focusing and tracking the eye horizontally and vertically.
Eye-Tracking system
The Tonoref II ARK with Tonometry initiates automatic measurement at the optimum measurement point.
Automatic Fogging
The balloon picture is an infinity target. Automatic fogging minimizes accommodation and maintains fog through all measurement readings.
Gentle Air Tonometry
The new Tonoref II ARK with Tonometry has an advanced APC (Automatic Pressure Control), a high-volume, low-pressure puff function that provides a softer puff of air for accurate IOP measurements with increased patient comfort. The Tonoref II ARK with Tonometry system automatically adjusts the strength of the air puff based on the first measurement of the patient’s IOP (including glaucoma suspects).
Aseptic Method for Tonometry
The non-contact tonometer (NCT) provides a simple aseptic method for measuring pressures. The automatic NCT measurements are operator-independent, and training is quick and easy.
Specifications
| Auto refractor/ keratometer | |
| Sphere Range | -30D to +25D (0.12D/0.25D) |
| Cylinder Range | 0D to +/-12D (0.12D/0.25D) |
| Axis range | 0 to 180 deg (in 1 or 5 steps) |
| Minimum measurable pupil diameter | 2.0 mm |
| Corneal Curvature Mode | |
| Corneal curvature radius | 5 to 13 mm (0.01mm) |
| Refraction Index | 1.3375 |
| Auto Track & Automatic Data Capture | X-Y-Z direction, Automatic Data Capture |
| Corneal refraction | 67.5 to 33.75D (0.12D/0.25D) |
| Corneal Astigmatism | 0D to +/10D (0.12D/0.25D) |
| Corneal astigmatism axial angle | 0 to 180 deg (in 1 and 5 steps) |
| PD measurement range | 30-85mm in 1 mm step |
| Non-Contact Tonometer | |
| Measurement Range | 1mm Hg to 60 mm Hg |
| Measurement Range Settings | APC40, APC60 (APC = Automatic Pressure Control) |
| Working Distance | 11 mm |
| Eye Fixation | Inner Fixation Light |
| Auto Track & Automatic Data Capture | X-Y-Z Direction, automatic data capture |
| General Information | |
| Monitor | Multi-position tilt 5.7-inch color LCD |
| Printer | Thermal line printer with automatic paper cutter |
| Power supply | AC 100-240 V , 50/60 Hz |
| Power consumption | 100 VA |
| Dimensions & Weight | 10.23″(W) x 18.93″(D) x 19.9″(H) / 50.7 lbs |
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