This image is not available for purchase in your country.

Colour blindness test

Colour blindness test

M450/0244

Rights Managed

This image is not available for purchase in your country.

Please contact your Account Manager if you have any query.

Credit

ANNABELLA BLUESKY / SCIENCE PHOTO LIBRARY ANNABELLA BLUESKY / SCIENCE PHOTO LIBRARY

Caption

Colour blindness test. Card with a central colour and four peripheral colours being used to grade colour vision deficiencies. One colour is similar to the central colour, whereas the other three colours are typical isochromatic confusions indicative of protan (red), deutan (green) and tritan (blue) deficiency. The hand is pointing to the matching colour, indicating that the person has normal colour vision. Colour vision defects may be inherited or can be caused by optic injury or nerve diseases. This test is called the City University colour test because it was developed by researchers at City University in London, UK.

Release details

Model release not required. Property release not required.

 {{ i.shot_duration ? i.shot_duration + ' ' : '' }}{{ i.shot_uhd ? '4K ' : i.hires ? 'HD ' : '' }}{{ i.spl_number }} R{{ i.license }}

  • Add to board
  • Similar {{ mediaType(i) }}