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unlock the diagnostic power of the pupil


Proud users of Reflex


Hospital / Clinic / Athletic Group

Single User



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.

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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.

Just hold the phone up to the patient’s eye and initiate the test, easy as that.

Our convenient barcode scanning system makes data entry fast and simple.


Use collected historical data to trend for increased patient outcomes.


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

eye for an eye

how can pupillometry help you in your medical workflow?

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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.

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