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.
Dilated pupils that are fixed and do not respond to light are one sign of death. Dilated pupils can also be a sign of a wide variety of plant poisonings or chemical poisonings. Dilated pupils can be due to black nightshade poisoning and toxic mushroom poisoning.