Autorefracto-Keratometer ARK-530A - Good 2011

ARK-530A autorefracto-keratometer - refraction measurements 

This device combines two new measurement methods - the Pupillary Area Detection Method and SLD (Super Luminescent Diode) technology. These innovations deliver unrivalled precision and reliability in objective refraction measurement.

The Pupillary Area Detection Method analyzes a larger area (Ø max. 4 mm), providing more reliable, realistic data that is close to manifest refraction. Equipped with an SLD and a sensitive CCD sensor, the ARK-530A improves measurement quality with a sharper, higher-contrast image than a conventional LED. This guarantees enhanced measurement capability, even under conditions of media transparency (cataract, IOL) and ambient light variations.

In addition to measuring refraction, the ARK-530A offers fast, reliable keratometry measurements, using a Placido sight for central measurement and peripheral measurements at the four cardinal points. The wide measurement range from -30 to +25 D expands the patient panel, including strong ametropes. The limit of measurable pupil diameter is extended to Ø 2 mm, enabling measurement through smaller pupils.

The unit facilitates workflow with 3D alignment, auto-focusing and automated measurements, offering significant time savings while ensuring optimum reliability. The 5.7" swiveling color LCD screen displays data and the image of the patient's eye in a user-friendly way, enhancing ease of use and reliability of results.

• Dimensions: 260 (L) x 481 (W) x 455 (H) mm
• Weight: 20 kg
• Power supply: AC 100-240 V ± 10%, 50 Hz
• Power consumption: 100 VA
• Measurement range:
• Sphere: -30.00 to +25.00 (VD = 12 mm) (steps of 0.01 / 0.12 / 0.25 D)
• Cylinder: 0D to ±12 (steps of 0.01 / 0.12 / 0.25 D)
• Axis: 0 to 180° (steps of 1° / 5°)
• Minimum pupil diameter Ø 2 mm