Visual efficiency is the eye's ability to track, converge, and focus quickly. Visual efficiency is needed for proper visual processing of visual information.
There are several visual abilities that affect visual efficiency.
The one that we are most familiar with is acuity and that’s size and clarity. But the one we will focus on concerns eye movements, your ability to move your eyes to follow a target, for example.
Visual efficiency skills are taught to help maximise use of one's vision. These skills include tracing along a line or path to locate an object, scanning the environment or a page of text for information, fixating on an object to elicit visual information, as well as tracking a moving object.