/ / / NIDEK RT-5100



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Refurbished (Learn How We Do it):

This device has undergone a complete internal and external refurbishment & cleaning process, and is operating to factory specifications. Learn about refurbishment times >

  • Stunning butterfly silhouette shape and style
  • Advanced refraction user interface with on-screen assist
  • Large, 8.4″ color LCD screen with tilt and flip functions
  • Low contrast mode, night mode + reverse functions
  • Final Fit auto power calculations come standard
  • Network connection to other NIDEK refraction devices


The photos displayed here are of an actual finished product (unit) currently utilized for demo purposes at our facility in Denver, Colorado.  Learn more about our photos >

Accessories Included:

  • (1) NIDEK RT-5100 Operator Console
  • (1) NIDEK Serial Communication Cable (from console to patient module)

*This device is intended to be connected and powered from a NIDEK refraction brain (control center) and does not come with independent power capabilities.

1-Year Limited Warranty 

Covering manufacturing defects and faulty workmanship for a period of 365 days. Don’t worry, we offer repair and tech. support after the warranty has expired.

Learn more about Buzz’s warranty policy >

 FREE Global Shipping

This device ships to over 60 countries for free, and typically arrives within 9-23 calendar days. Don’t worry, we’ll keep you updated via email.

Learn more about Buzz’s free shipping >

 30-Day, No-Questions-Asked Returns

Send this instrument back within 30 days of delivery for a complete refund– no questions asked. Please note that a 10% re-stocking fee may apply.

Learn more about Buzz’s return policy >

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I’m not sure that you need the NIDEK RT-5100 outside the realms of some kind of some kind of refraction farm where the product is glasses and the quota is in the thousands-per-day range. It’s not only one of the best looking refractive-things I’ve ever seen, it’s also incredibly advanced- and maybe even too much so. The 5100 upon its birth was quite the thing- and it still is- starting with its stunning futuristic shape who’s sweeping lines and elongated curves will be sure to impress yourself and patients simultaneously upon every exam. Once you’re done staring at its butterfly-esque silhouette you’ll begin to stare at the enormously large and tillable and flappable LCD console screen which displays a refraction user interface beyond anything you’ve experienced with that old manual phorotper thing. The screen is nearly 9-inches, and the user interface for both operator and patient is lovely. Standard software features allow easy programming with on-screen refraction assist and the patient module itself sends signals when the patient is properly aligned. Final fit power calculations plus low-contrast mode, night mode, and the optional 21-point mode are major selling points- and perhaps even create a more efficient refraction process. Although I’m not again sure that the 5100 means anything more than marginal improved exam times given all the bells and whistles that your old phoropter doesn’t have that you’ll want to use. Thankfully, the RT-5100 is at home on NIDEK’s EPIC-5100 refraction system which means wireless (or wired) connection to NIDEK lensometers, auto refractors, and acuity charts. Synced data populates on the 5100’s console reducing input time and getting to a striating point quicker. 


OUR TAKE: For the advanced refractionist? Is that a thing?

Robustness :  8.0 of 10
Aptitude       :  9.0 of 10
Comfort       :  9.0 of 10
Design         :  9.0 of 10
Learn how we judge instrumentation per category >

92015:  $8.01

Determination of Refractive State

*coverage of the above procedure may be subject to local reimbursement amounts, special provisions, and your own service rate.

*based on CPT 92015 assuming determination of refractive state

Ergonomic Design

The RT-5100 fulfills the operators’ two dreams: Sophisticated design and comfortable examination. Its stylish design perfectly fits in a small space, providing a quick and accurate exam for both operators and patients.

Smooth, Speedy, Silent Lens Change

The RT-5100 offers quick and smooth lens changes, allowing the operator to show minute changes of prescription at the touch of a button.


High-performance Color LCD Touch Screen

The color LCD touch screen displays a great deal of information, including near vision charts, refraction diagrams, and explanations of common pathologies.



Dial with S/C/A Mode Key

Applying ergonomic principals, the main control dial allows for rapid refractive value changes. The button in the center of the dial allows the operator to easily switch modes (S, C, and A) with one hand, while looking at a patient when performing retinoscopy or the refraction.

Easy Programming and On-screen Assist Function

The RT-5100 offers easy programming of charts, cross cylinder test, and data fields (SPH, CYL, AXIS, and VA). In addition, On-screen assist function guides the operator step-by-step through the entire process.


Accurate Measurement

The RT-5100 forehead position detector incorporates a blue LED which turns off when the patient’s forehead is in the correct position for measurement. Furthermore, the RT-5100 offers R/L independent PD adjustment and has visual field of 40 degrees, for more accurate measurement.





Tiltable, Flip Display

The tiltable LCD screen achieves smooth operation in both sitting and standing positions. Moreover, when used for near testing the displayed contents will be automatically flipped for the patient’s easy view.





Final Fit for the Best Fit Prescription

The RT-5100 incorporates Final Fit, the adjusted power calculation program, to help find the most comfortable prescription for each patient.

Simple Maintenance

Maintenance is made simple by anti-fogging protective glasses, and detachable forehead rest / face shields.

Clear Vision Range Check

Clear Vision Range Check supports a comprehensive explanation to patients. Based on measured values, it gives the patient a visual aid in a graphical form to demonstrate the range of clear vision with their correction in place.

Contrast and Reverse Functions

Contrast test is available when either the System Chart (SC) or Space Saving Chart (SSC)*1 is connected. The contrast function enables the testing of visual acuity under low-contrast conditions (25%, 12.5% and 6%). It helps the operator to evaluate the visual function using contrast sensitivity and to observe changes with time. In addition, the reverse function is also available, when connected with the SC.

Reversed color VA chart is used for special test such as amblyopia.*2 *1 Contrast test availability differs according to the type of SSC. *2 VA value is for reference.



Night Mode

Some patients have significantly different SPH, CYL, AXIS values between their day and night pupils. By touching the night mode button on screen, it is possible to examine night-time visual acuity under low light condition. To measure in Night mode, a chart presenting device with Night measurement function (SSC-350/SSC-370/SC-1600/SC-1600 Pola) is necessary.





21-point Exams Plus Package (optional)

This optional software enables the operator to easily go through the process of the 21-point exams. These exams traditionally requires the operator to have a deep knowledge of optics and many years of experience. This software guides the operator through the entire exams. Furthermore, after the measurement, the graph of visual function analysis and comparison with the Morgan standard are displayed.

Memory Box Connection

With the MEM-100 Memory Box, it is possible to transfer data from one AR / ARK to up to six units of RTs. Please contact us for further information on MEM-100 Memory Box.

Daisy Chain Connection

Using the Daisy chain connection method, one AR / ARK can be connected to up to 5 RT units.

COS-5100 Optometric Workstation

The COS-5100 Compact Optometric Workstation is here to fit each customer’s needs. Below configuration is just an example. Please contact us for further information.


The RT-5100 with stand is also available. Compact stand for control box incorporates a printer that provides easy loading.

The RT-5100 is designed to be used with a NIDEK controller power box for use with a NIDEK EPIC-5100 system, or other refraction instrument stand.

The RT-5100 is designed to connect and communicate with other NIDEK lensometers, auto refractors, and acuity charts. NIDEK offers wireless connection via EyeCard, Bluetooth, or via wired connection with ELAN cables.

The RT-5100 should integrate directly with all EHR / EMR platforms however, contact your EHR company first to make sure.


*These specification tables are provided directly from the manufacturer and are accurate to the best of our knowledge. Please note that accessories or other specifications pertaining to models not listed for sale on Buzz may not be included or offered on this device.

Additional information

Weight 15 lbs