Netrometer Smartphone Lensometer by EyeNetra

(1 review) Write a Review
FREE within the contiguous United States; discounted worldwide!

Netrometer by EyeNetra

The handheld Netrometer by EyeNetra captures the refraction of single vision, bifocal, and progressive lenses in seconds. With a smartphone-enabled precision of 0.08D, the Netrometer is just as accurate as top-tier lensometers costing upwards of $15,000. No more alignment issues and inaccuracies associated with human error. No need for specialized furniture, power cords, and extensive training. Just install the app, insert the phone, grab your glasses, and go!

What's Included
  • 1 Netrometer (lensmeter/ focimeter).
  • 1 Calibrated Smartphone with EyeNetra's mobile applications.
  • 1 Charging cable for the smartphone.

Product Specs

Technology Neflectometry (Pat. Pending)
Camera Smartphone Rear-Facing Camera
Light Source Smartphone Camera with Light Pipe (No Lasers)
Measuring Wavelengths ~400nm to ~750nm (Broadband)
Sphere Range -13 to +7.0D, 0.25D increment
Cylindrical Range 0 to -7D, 0.25D increment
Axial Range 0 to 180, 1 degree increment
Lens Type Single Vision & Progressive Lenses, Distance & Readers
Device Dimensions 7.5cm x 11cm x 21cm (500g)
External Processing Unit Samsung S4
Measurement Time 3 seconds
Scratch, Dust on Lens Permissible
Calibration Rqmnts None
Office Illumination Rqmnts None (Optically Sealed)
Specialized Furniture Rqmnts      None (Handheld)
FDA Status Company Registered & Product Listed as Class 1 exempt


  • This product comes with EyeNetra's 1 year limited-warranty.

*currently unavailable in Argentina, China, Israel, Mexico, & Turkey.

Videos Hide Videos Show Videos

1 Review Hide Reviews Show Reviews

  • 5
    Thank You!!

    Posted by Unknown on Jul 23rd 2019

    Awesome product and what a wonderful experience to do business with Envision. They patiently addressed all of my questions while demonstrating impressive technical + clinical understanding (including product limitations). Their prompt shipping and thoughtful packaging is icing on the cake!