Who are you?

To better deliver content associated to your field and needs as a medical professional, please select the image that best describes your field of work.

Proud users of Reflex

Download today for a 60-day free trial, no payment needed.

Schedule a Meeting with Us


Reflex’s mean absolute error is under 1 mm from real, ground truth, pupillary results. Reflex’s standard deviation is 0.30 mm. No other pupillometer on the market has directly validated PLR results to true ground truth values.



Reflex is simple. Never again do you need to second guess yourself on subjective penlight tests. Reflex offers an intuitive, hassle-free, method to acquire accurate PLR data and metrics for each specific subject profile. Easy as that.

A clinically validated tool that is easy, objective, and repeatable.


How can pupillometry help you in your medical workflow?


Quantifiable Metrics

Reflex will produce, when possible, quantitative metrics about the subject’s PLR. These metrics include:

  • Latency
  • Minimum Diameter
  • Maximum Diameter
  • Average Diameter
  • Maximum Constriction Velocity
  • Average Constriction Velocity
  • Dilation Velocity
  • 75% Recovery Time

These metrics are the most commonly reported values for pupillometers today. However, we are always looking to add more and are exploring new quantities that provide relevant medical information.

Want to know more about why quantitative pupillometry matters? Access our curated resource guide

Resources Guide

Reflex is a Class 1 510(k) Exempt Medical Device under 21 CFR 886.1700