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RETeval™ Visual Electrodiagnostic Device For Diabetic Retinopathy Screening

This revolutionary device measures the 30 Hz flicker implicit time, which has a strong correlation to retinal ischaemic diseases such as diabetic retinopathy.

Design Features

Easy to learn, and easy to use
Accurate and repeatable
Self calibrating
Self contained
Lithium Ion Battery Powered
Robust in signal acquisition and processing
Capable of accurate results even in “noisy” environments
Able to use specially designed skin sensors with excellent results
Capable of interfacing easily with EMR systems
Focused on broad unmet health needs
Multi-language support

Functional Assessment

Fast and Accurate – both eyes in 3 minutes
Choice of local language
Easily administered by a nurse or technician
Only minutes of training required
Non-invasive – no dilation – adhesive skin sensors
Unaffected by cataract or pupil size
Instant feedback – identifies sight threatening DR & CSME
Inexpensive – device & per test
Small – handheld
Proven well published science

Exclusive Capabilities

Real-time pupilography control of flash intensity – constant trolands delivered to the retina regardless of pupil size – So unique it is patented in the U.S., the E.U. and elsewhere. The world’s first non-mydriatic ERG device.

Patent pending LED flash delivery methodology – Red, Green, and Blue LED’s are each illuminated for the entire duration of each flash
The “white” flash is present for the entire flash stimulus period
Current methods flash the Red, Green, and Blue LED’s independently for different lengths of time to create the “white” flash in < 5 ms.

Patent pending Sensor Strip skin electrodes. Unique design to allow one clip to work on either the right or left electrode and to integrate the “plus”, “minus” and “common” in one easily applied electrode.

Patent pending 30 Hz stimulation processing to correlate to Diabetic Retinopathy

Real-time calibration of flash intensity and color before each test in < 1 second
auto-corrects variances
Prompts operator to clean Ganzfeld if a threshold is exceeded
Injection molded high reflectance surface – easily cleaned – no paint!

Patent pending ambient light detection – minimizes implicit time impact of excessive ambient light

30 Hz flicker test time is controlled by device computed confidence level – typically 5-8 seconds per intensity level per eye

30 Hz Flicker Built-in Protocols

User selectable fixed intensity flashes– user selectable for dilated eyes:

  • 1 cd·s/m2
  • 3 cd·s/m2
  • 10 cd·s/m2
  • 30 cd·s/m2

User selectable fixed flash sequence protocols in cd·s/m2.

  • 3 cd·s/m2 flash with 30 cd/m2 background light (ISCEV standard)
  • 0.01, 0.03, 0.1, 0.3, 1.0, 3.0, 10.0 dim to bright – device automatically progresses through the series

Non-mydriatic : flash intensity controlled by pupil size
  • 1 Td·s
  • 2 Td·s
  • 4 Td·s
  • 8 Td·s
  • 16 Td·s
  • 32 Td·s

User selectable flash sequence protocols in Troland seconds
Device automatically progresses in random order

  • 1, 2, 4, 8, 16, and 32 Td·s
  • or
  • 4, 8, 16, 32 Td·s

Results Reporting - on device or to PC














See YouTube video






























Stat One Services Ltd are the UK agent for this equipment and are happy to give demonstrations and to provide support and quotations