Keep several moving targets in view at once.
This task records targets tracked on a fixed, repeatable version of the task. Your result is comparable to your own previous attempts on the same device.
It does not diagnose anything, and it does not claim to improve anything beyond performance on this task. Reported times include display and input latency from your own hardware.
Stop if you feel dizzy, nauseous or strained.
Some dots light up. Remember them. All the dots then look the same and move around. When they stop, click the ones you were tracking.
Accuracy. Higher is better. Each difficulty (Easy, Normal, Hard) keeps its own personal best, and custom settings are saved but not ranked, so your bests stay comparable.
This measures how many moving objects you can keep track of at once, on this task.
Your eyes move in a few distinct ways. Smooth pursuit keeps a moving thing in focus. Saccades are the quick jumps between points. Fixation is holding still on one point while the world moves around it.
Practice can change how accurately you land, how quickly you start a movement and how well you hold back one you did not want. The top speed of these movements is set by the brainstem and does not rise with practice.
Eye exercises do not improve eyesight or change a glasses prescription. If your vision changes, see an optometrist.
