Any lens or combination of lenses acting virtually as a magnifying lens in a microscope nearest the eye of the observer. Also called ocular, or ocular lens.
See Alexandrite Tsarstone collectors guide, Definition of Eyepiece, http://w.alexandrite.com/viewpage.html?id=GG-090-00005 (Any lens or combination of lenses acting virtually as a magnifying lens in a microscope nearest the eye of the observer. Also called ocular, or ocular lens.) (as of May. 31, 2026, 16:26 GMT).