When the eye focuses on a fixed target, the resulting accommodation is not constant: it varies around an average value, like with an auto-focus camera. These fluctuations are called accommodative micro-fluctuations they are imperceptible and uncontrollable.
When the eyes get tired, these micro-fluctuations practically disappear, which shows that the accommodation system has greater difficulty sustaining its effort. These micro-fluctuations provide the best objective evidence of visual fatigue.
Essilor Anti-Fatigue lenses help restore the micro-fluctuations and retain the balance of the accommodative system, for fatigue free vision.
Essilor Anti-Fatigue lenses require less accommodation effort at close range compared to a standard single-vision lens.