NIDEK ARK-1a Auto Refractometer
Fast. Accurate. Patient-friendly. Objective refraction and keratometry in one compact unit.
The NIDEK ARK-1a is an advanced auto-refractometer / keratometer that delivers fast, repeatable
objective refraction and corneal curvature measurements. Designed for busy clinics, it combines
high-quality imaging, eye-tracking alignment and retro-illumination imaging for quick opacity assessment.
Key features
- Accurate objective refraction with fogging and wide-area (large pupil zone) measurement
- Integrated keratometry (mire-ring method) for reliable corneal curvature data
- Retroillumination image for simple opacity/cataract assessment
- Eye-tracking (X–Y–Z) for fast alignment and auto-shoot capability
- Super Luminescent Diode (SLD) illumination for sharper images and better performance through opacities
- 6.5″ full-color LCD display and high-speed built-in printer (optional connectivity)
- Patient-friendly accommodation measurement and visual acuity / glare test support
Technical specifications (high-level)
| Parameter | Value / Range |
|---|---|
| Auto-refractometer — Sphere | -30.00 D to +25.00 D (VD = 12 mm), increments selectable (0.01 / 0.12 / 0.25 D) |
| Auto-refractometer — Cylinder | 0 to ±12.00 D (0.01 / 0.12 / 0.25 D) |
| Axis | 0° to 180° (1° / 5° increments) |
| Minimum measurable pupil | Ø 2.0 mm |
| Auto-keratometer — Curvature radius | 5.00 to 13.00 mm (0.01 mm increments) |
| Auto-keratometer — Refractive power | 25.96 to 67.50 D (n = 1.3375) |
| Display | 6.5″ high-quality color LCD |
| Imaging / Illumination | Super Luminescent Diode (SLD), retroillumination imaging for opacity assessment |
| Other | Eye-tracking, auto shot, internal printer and data output (network/PC optional) |
Benefits for clinics & practitioners
- Speeds up refraction workflow and reduces chair time.
- Improves measurement reliability even in partially opaque media (e.g., cataracts).
- Combines refraction + keratometry in a single footprint — saves space.
- Easy to operate: auto-tracking and auto-shoot lower operator dependency.
No products in the cart.
Reviews
There are no reviews yet.