Description
This exact unit sold recently — but we specialize in sourcing refurbished ophthalmic equipment. Typical turnaround is 2–4 weeks once we confirm availability with our partners. Request a free quote with no deposit required.
Request Availability → Free quote · No obligation · 90-day warranty when shipped
Similar Autorefractors In Stock Now
Need a comparable autorefractor available today? These units are in stock and ready to ship with a 90-day Digital Eye Center warranty.
Prefer to wait for the Nidek ARK-900 Autorefractor Keratometer – Used? Request availability and we’ll source one for you.
What’s Included
- Nidek ARK-900 autorefractor keratometer (combo unit)
- Power cable (as photographed)
- 90-day Digital Eye Center warranty
Condition & Warranty
Used. Tested before listing — objective refraction and keratometry measurement modes verified, single-target alignment confirmed, joystick movement and centration verified, internal printer functional. Cleaned. Covered by a 90-day warranty on parts and workmanship.
Nidek ARK-900 — Used Autorefractor Keratometer Combo Unit
The Nidek ARK-900 is one of Nidek’s classic autorefractor + keratometer combination units — combining objective refraction and corneal-curvature K readings into a single benchtop instrument. This used nidek ark-900 ships ready as a complete combo unit at a sub-$2.5K entry price into Nidek’s autorefractor line.
The ARK-900 measures sphere, cylinder, axis, and corneal-curvature in a single patient alignment. Internal printer outputs measurement records for chart insertion. Same Nidek build platform as the higher-tier ARK-500A, ARK-530A, and ARK-560A — making it a budget-friendly entry into the Nidek ARK ecosystem for satellite practices and screening clinics.
According to a National Library of Medicine-indexed study (Indian J Ophthalmol, 2026), agreement between objective autorefraction and subjective phoropter refraction depends heavily on instrument quality and operator-instrument interaction — supporting the standard Nidek ARK measurement workflow.
Why Practices Choose the Nidek ARK-900
Combo autorefractor + keratometer — both measurements in single patient alignment.- Sphere / cylinder / axis / K readings — full refractive parameter set.
- Internal printer — direct hard-copy output for chart insertion.
- Single-target alignment — fast, intuitive operator workflow.
- Budget Nidek ARK entry — sub-$2.5K used pricing.
- Joystick fine adjustment — precise patient centration.
- Nidek service network — extensive US parts and service support.
- Compact tabletop footprint — fits standard exam-lane tables.
Clinical Applications
- Pre-exam refractive workup — objective starting point for subjective refraction.
- Cataract pre-op K readings — corneal curvature data for IOL power calculation.
- Contact lens fitting — keratometric base curve data.
- Refractive surgery screening — baseline corneal curvature documentation.
- Pediatric and screening clinics — fast objective refraction.
- Satellite optometry offices — entry-level Nidek autoref/K capability.
Who This Is For
- Satellite optometry practices and budget-conscious offices.
- Screening clinics, occupational health, school nurse offices.
- Multi-doctor groups using newer Nidek ARK models in main location and ARK-900 in satellites.
- Practices wanting Nidek build quality at sub-$2.5K used price.
- Buyers replacing aging older non-Nidek autorefractors.
Technical Specifications
| Specification | Detail |
| Type | Autorefractor + keratometer combination unit |
| Measurements | Sphere / cylinder / axis / corneal keratometry |
| Target | Single-target alignment |
| Printer | Built-in |
| Form factor | Compact tabletop |
| Manufacturer | Nidek (Japan) |
| Condition | Used — tested before listing |
| Warranty | 90-day DEC warranty on parts and workmanship |
Compare Nidek ARK Options
Where this Nidek ARK-900 fits in DEC’s Nidek ARK inventory:
| Model | Brand | Price | Notes |
| Nidek ARK-900 | Nidek | $2,400 | Entry-level Nidek ARK — this listing |
| Nidek ARK-700A | Nidek | $4,000 | Mid-tier with simultaneous measurement |
| Nidek ARK-530A | Nidek | $4,180 | Newer mid-tier — in stock |
| Nidek ARK-500A | Nidek | $4,800 | Premium tier — in stock |
| Nidek ARK-560A | Nidek | $4,400 | Newer Nidek — in stock |
Questions about the Nidek ARK-900? Contact us for current availability and shipping details.
