eyeglass

noun

1. An artificial lens, especially one of a pair.
2. A monocle.
3. An eyepiece.
4. (obsolete)The lens of the eye.

   “Ha' not you seen, Camillo? / (But that's past doubt; you have, or your eye-glass / Is thicker than a cuckold's horn)”

5. (attributive, form-of)Attributive form of eyeglasses.

   “an eyeglass repair kit”