The Visual Stress & Colorimetry Assessment Tool (VSCAT) is a software as a service (SaaS) application used to support the comprehensive process for evaluating individuals for Visual Stress. This tool is designed for use by the general public, with some more advanced components for eye care, health care and education professionals.

Individuals who may benefit from this process suffer from neurological and neurodevelopmental conditions where the visual system is compromised. These include conditions such as learning difficulties, migraines and acquired brain injury.

The VSCAT uses a combination of printed material, videos, hard goods and a medical device, to guide individuals and specialists through the assessment journey – from pre-screening and identification of Visual Stress to fulfillment with precision tinted lenses.

To get started, proceed to the pre-screening test (step 1). Watch the videos and complete the sections to get your report and scoring summary.  

For more information, please refer to our Privacy Policy , Terms of Use and System requirements.

Please do not hesitate to contact us with any questions you may have.

The VSCAT application is a consolidation of several formal assessment tools: 

• Practical Diagnostic Guidelines for Visual Stress

  (2016) a Delphi Study published in the Journal of Optometry

• The Clinical Protocol for the Optometric Management of patients with Reading Difficulties

  (1995) published in the Journal of Ophthalmic and Psychological Optics  

• Intuitive Colorimeter (Colorizer) for use in determining an optimal ophthalmic tint of patients with Reading Difficulties

  (2001) published in Colour Research and Application

• The Pre-Screening and Assessment process

  (2013) by Opticalm Inc.