Measuring Visual Functions

Whether you need Metropsis ready-to-run visual function assessment unit for clinical research or drug trials, or a fully programmable software tool for vision science, like the Visual Psychophysics Engine, or Psykinematix, we have the solution.

We've been in psychophysics since the very beginning...

Cambridge Research Systems was co-founded by Professor John Robson FRS, whose many contributions to vision science include psychophysical measurement of the human contrast sensitivity function, neurophysiological investigations into spatial frequency selectivity, and pioneering analytical methods that provide seminal insights into the nature of visual processing.

John is now (mostly) retired. We currently have commercial partnerships with a number of vision scientists including Dr Neil Parry (Clinical Vision Scientist, The University of Manchester), developer of Visual Psychophysics Engine for ViSaGe, and Dr William H A Beaudot (KyberVision Japan LLC) developer of Psykinematixs for Bit# and Display++.

... and we're specialists in colour vision

Our colour discrimination tests are based on our long and valued association with Professor John Mollon FRS, developer of the Cambridge Colour Test. The original Cambridge Colour Test was designed to run on our early visual stimulus generator, the VSG, and we've updated it for every new hardware system we've developed. It's still available for ViSaGe, and is now a key component of Metropsis Visual Function Assessment Unit, which also includes protocols for testing visual acuity, and contrast sensitivity function.

Our in-house Staff Scientist Dr Caterina (Katia) Ripamonti is also a colour vision specialist and retains an Honorary Senior Research Fellowship at University College London, Institute of Ophthalmology and an Honorary Research Fellowship at Moorfields Eye Hospital.

We have over 25 years of experience to share, so please get in touch.

  • MONCvOne 350x350

    Standard Automated and Goldmann Perimetry

    Standard automated perimetry & Goldmann perimetry all in one. Tests for patients who cannot perform automated perimetry. The only visual field equipment with synchronized video recording. Combines two perimetry standards

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  • Cambridge Colour Test 350x350

    Cambridge Colour Test

    The Cambridge Colour Test for ViSaGe provides a rapid means of screening subjects for colour vision deficiencies. It can also be used to examine in more detail the changes in colour discrimination that occur as a result of congenital or acquired conditions. 

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  • Neil Parry

    Visual Psychophysics Engine

    The Visual Psychophysics Engine is a versatile software tool for ViSaGe that was developed by Dr Neil Parry (Clinical Vision Scientist, The University of Manchester). It is supplied with a suite of pre programmed experimental paradigms or you can create your own bespoke protocols using the easy-to-use, menu-driven interface.

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