Glare resulting from very bright sources of light in the field of view. It usually is associated with bright light from luminaires and windows. A direct glare source may also affect performance by reducing the apparent contrast of objects in the field of view, especially those near the source of light.
Glare resulting from high brightness or insufficiently shielded light sources in the field of view. It usually is associated with bright areas, such as luminaires, ceilings and windows which are outside the visual task or region being viewed.