Saccadic movements or oculomotor capacity: (Score = bad, medium, good) A light appears on the screen and the participant move their eyes to fix on the object. While they eyes adjust, they will temporarily cover small distances until they achieve a fixed focus. These are called saccadic movements. Lights appear and disappear, in different locations on the screen, at a rate of 100 per minute, lasting 2 minutes. The test result is scored by the evaluator based on a global impression over the entire 2 minutes, with 3 separate sub scores on an ordinal scale for quality (bad, medium, good), for synchronization (bad, medium, good) and saccadic correction (many corrections, few corrections, no corrections). The three sub scores are combined into an overall score according to our industry partner's (Apexk) proprietary algorithm.