Glare Effect Overview

Glare is the contrast lowering effect of stray light in a visual scene.

Glare forms a veil of luminance which reduces the contrast and therefore the visibility of a target is decreased.

Glare effect is due to the fact that light sources located in periphery of the visual field are diffused by various diopters constituting the human eye, like by the aqueous humor, which results in darkening the central zone of vision, the fovea.

Without glare effect

With glare effect