ARK-530A Auto Refractor/Keratometer

Highly Accurate Refractor
The combination of new measuring principle - Pupil Zone Imaging Method - and unique technology - SLD - offers high accuracy and reliability in refraction measurement.

Pupil Zone Imaging Method
The NIDEK ARK-530A / 510A adopts the advanced Pupil Zone Imaging Method for refraction measurement, which analyzes a wider area (Max. ø4 mm) to obtain more reliable and realistic data that is closer to subjective refraction.

SLD (Super Luminescent Diode)
The ARK-530A / 510A uses the SLD (Super Luminescent Diode) and highly sensitive CCD device for improved image quality. The image with the SLD is sharper and clearer than those with the LED, and the system offers greatly improved measurement capability even with dense cataract and IOL implanted eyes.

Reliable Keratometer
The ARK-530A / 510A also offers high accuracy in keratometry measurement.
The system provides ordinary measurement (ø3.3 mm) using a mire ring, and also peripheral measurement (ø6 mm) using 4 points, both of which offer reliable and accurate keratometry data. The ARK-530A / 510A uses double mire rings for better alignment and observation.

Wide Measurement Range: -30 to +25D
The ARK-530A / 510A offers the widest measurement range of -30 to +25D.

Smallest Measurable Pupil Size: ø2mm
The ARK-530A / 510A can measure small pupils down to 2 mm in diameter, allowing wider application.

3D* Auto Tracking & Auto Shooting
The auto-alignment (X & Y directions), autofocusing (Z direction) and auto-shooting provide faster, simpler and more accurate measurements. When alignment is performed correctly, measurement starts automatically.
*3D: ARK-530A only

Informative 5.7-inch Tiltable Color LCD
Clear image and data display with user friendly guidance allow easier and more reliable operation.
The clear 5.7-inch color LCD with tilting function offers easy operation even for a standing operator.

Virtual Vision Comparison
A virtual comparison between patients current vision (with the unaided eye or with glasses*) and AR-corrected vision can be easily demonstrated.
*Requires data transfer from a NIDEK auto lensmeter.

Motorized Chinrest
The motorized chinrest with simple up / down buttons facilitates smoother operation.

One-Touch Lock
The main body can be fixed with the advanced one-touch lock.

High Speed Printer with Easy Loading & Auto Cutter
The ARK-530A/510A incorporates a high speed and user-friendly printer, and the printer paper can be changed easily. Printed data sheet will be cut by the auto cutter for quick and easy detachment. The desired data, such as the AR value, PD and confidence coefficient, as well as an eyeprint for documenting patient treatment, can be selected and printed out.

EyeCare Card System*
The ARK-530A/510A incorporates the card slot for EyeCare Card system, which provides quick and easy wireless data transfer.
*The card is optional.