We are offering to assess and classify colour vision deficiencies, in particular all X-linked colour deficiencies commonly referred to as red-green colour blindness. Depending on the tests used, a session can be between one to four hours long and be performed in either a single or two separate sittings.

Typically, basic classification can be achieved in 30 minutes. All tests are non-invasive and simply involve the client to making judgments (eg discriminating, matching, ordering, naming) of coloured lights or pigment samples under standardised lighting conditions.

We use a comprehensive battery of both standardised tests and more sophisticated tests initially developed for research purposes. Standardised tests include the Anomaloscope, the Ishihara Plates, Farnsworth-Munsell 100-Hue test, and the D15.

These tests are norm-referenced behavioural tests in which procedures follow strict, pre-specified rules. In addition, we are offering to test our clients with equipment uniquely developed at Newcastle University. 

Contact

• Professor Anya Hurlbert
  Email: anya.hurlbert@ncl.ac.uk
  Telephone: +44 (0)191 208 7638
  
  
• Dr Gabi Jordan
  Email: gabriele.jordan@ncl.ac.uk
  Telephone: +44 (0)191 208 5624