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Quantitative Pupillometry

neos® binocular pupillometer provides an objective assessment of pupil responses, including measurements of efferent pupillary function and an automated swinging flashlight test

Measuring RAPD - the easy way

Detect the unseen. Helping you make data-driven decisions.

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The RAPD neoscore™ enables neos® to provide quantified results based on objective tests, which supports analysis of relative afferent pupillary defects. 

Keep reading to find out what it means and why it matters.

Automating the swinging flashlight test

Manual swinging flashlight tests only correctly estimate 40% of RAPD magnitudes2. Automated testing of RAPD using a VR-headset and eye-tracking reaches non-inferior performance compared with assessment by senior neuro-ophthalmologists3. Quantitative pupillometry can therefore provide reliable measurements with a low error rate, assessing variables including pupil size, constriction amplitude, and response latency.

neos® uses an automated, digitalized version of the swinging flashlight test: simultaneously measuring direct and consensual pupil responses with a period of 3 seconds.

2Boucher T, Fortin É, Evoy F. The standard swinging flashlight test: reliable or not (P1.9-009). Neurology. 2019; 92(15 Supplement): P1.9–009.

3https://www.machinemd.com/news/study-shows-great-potential-to-automate-quantitative-pupillometric-tests

Three Scenarios. Clear Results 

Whether an RAPD is present in the right eye, left eye, or not at all — the measurement results are clear, data-driven, and easy to interpret.

On the right, we showcase three typical measurement scenarios demonstrating the performance of the RAPD neoscore™ algorithm.

Right RAPD
Left RAPD
no RAPD

Efferent pupillary function 

neos® systematically presents visual stimuli to both eyes individually and together, measuring the resulting eye movements and pupillary changes of each eye, and charting this data in an examination report. 

Efferent pupillary function can be assessed quickly, reliably, and objectively in an immersive VR environment with neos®. The head-mounted display minimizes the influence of ambient light, removing the need to darken an examination room. 

neos® continuously measures the pupil size of both eyes in real-time with high precision. This sequence is repeated to ensure consistent and meaningful results.

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Pupillography helps to quickly appreciate pupil dynamics in addition to measurement values

neos® gives confidence assessing pupils

.. in support of clinical decision making due to reliable data.

... by supporting smoother workflows and helping reduce the chance of errors in daily operations.

... in support of identifying signs early, reducing uncertainty for both clinicians and patients and enabling faster interventions.

 

… in easier tracking, monitoring, and comparison of results over time, ensuring consistent and reliable documentation.

 

... in easy adoption across teams, enhancing accessibility and ensuring smooth integration into diverse clinical settings.

 

… in reliable documentation and streamlined workflows, ensuring future-proof operations with seamless cloud-based solutions.

Dive into our latest studies and market research.

 

In addition to quantitative pupillometry, neos® provides a comprehensive assessment of eye alignment, eye movements, and more.

 

machineMD is proud to work with clinical partners around the world, including

 

Get started with neos®

SWITZERLAND

Our partners at Von Hoff AG are ready to help you get started with neos®  in Switzerland.

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Europe

neos® is certified as a Class IIa medical device under the EU-MDR, and registered with the MHRA in the UK. 

USA

neos® is a Class I medical device registered in the US. Our team at machineMD Inc. is based in Boston, MA. .

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