Colour perception develops throughout childhood with increased risk of deficiencies in children born prematurely.

Aim: To quantify the impact of prematurity on chromatic discrimination throughout childhood, from 2 to 15 years of age.

Methods: We recruited two cohorts of children, as part of the TrackAI Project, an international project with seven different study sites: a control group of full-term children with normal visual development and a group of children born prematurely. All children underwent a complete ophthalmological exam and an assessment of colour discrimination along the three colour axes: deutan, protan and trytan using a DIVE device with eye tracking technology.