Uses cones to perceive detail and color.
The eye takes time to adjust from a bright lobby to a dark parking lot. Gradual lighting transitions prevent "transient adaptation" issues where a person is momentarily blinded. Outdoor Lighting: Physics, Vision and Perception
Glare occurs when a light source is significantly brighter than its background. It causes discomfort glare (annoyance) or disability glare (reduced ability to see). Shielded "full-cutoff" fixtures reduce glare and improve visibility. Uses cones to perceive detail and color