ocular

(ok’u-lar) [L. ocula'ris; oc'ulus eye]. 1. Pertaining to the eye. 2. The eye-piece of a microscope; the lens of a microscope nearest the eye. compensating Ο., an eye-piece that compensates the axial aberration of the objective. huygenian 0., an eye-piece consisting of two planoconvex lenses, the convexities being toward the object. den’s 0., a microscopic eye-piece made of two planoconvex. lenses with the convexities turned toward each other. working o., an ordinary ocular for microscopic observation: distinguished from finding ocular.