the scientific study of sight and the behaviour of light, or the properties of transmission and deflection of other forms of radiation
(typically in a political context) the way in which an event or course of action is perceived by the public
what we really need in this circumstance is to make smart decisions in the best interest of student safety—not simply make changes that win political points for optics
a lens or other optical component in an optical instrument
a device fastened to the neck of an inverted bottle for measuring out spirits