A woodworking jig is a device used to control the blade of a saw or the motion of another tool that will cut or otherwise alter wood. Simple jigs can be made from wood, and they can be custom-built for specific woodworking functions; a person can also buy a prefabricated woodworking jig made from wood, plastic, or even metal.
Normally the size of the pupil is the same in each eye, with both eyes dilating or constricting together. The term anisocoria refers to pupils that are different sizes at the same time. The presence of anisocoria can be normal (physiologic), or it can be a sign of an underlying medical condition.
Performing the Exam for Pupillary Responses. 1  Observe the pupil size and shape at rest, looking for anisocoria (one pupil larger than the other) 2  Observe the direct response (constriction of the illuminated pupil) 3  Observe the consensual response (constriction of the opposite pupil) 4  Repeat with the opposite pupil.