Eyeglass

Definition:

(n.) A lens of glass to assist the sight. Eyeglasses are used singly or in pairs.
(n.) Eyepiece of a telescope, microscope, etc.
(n.) The retina.
(n.) A glass eyecup. See Eyecup.

Compare eyeglass with other words:

eyeglass vs. eyepiece

eyeglass vs. monocle

eyeglass vs. lens

eye vs. eyeglass

connotation vs. eyeglass