What Google Knows
Visual perception is the ability to interpret the surrounding environment through photopic vision, color vision, scotopic vision, and mesopic vision, using light in the visible spectrum reflected by objects in the environment.
N A sight is an aiming device used to assist in visually aligning ranged weapons, surveying instruments or optical illumination equipments with the intended target.
N a 2008 horror film written and directed by Adam Ahlbrandt.
N a DVD released in 2005.