Definition that contains defective vision
- glasses (plural) optical instrument consisting of a frame that holds a pair of lenses for correcting defective vision
- specs (plural) optical instrument consisting of a frame that holds a pair of lenses for correcting defective vision
- spectacles (plural) optical instrument consisting of a frame that holds a pair of lenses for correcting defective vision
- eyeglasses (plural) optical instrument consisting of a frame that holds a pair of lenses for correcting defective vision
- monocle lens for correcting defective vision in one eye; held in place by facial muscles
- eyeglass lens for correcting defective vision in one eye; held in place by facial muscles