What type of glasses are best for reading?
What type of glasses are best for reading? Bifocal readers have unmagnified lenses which also contain inserts with the magnification of your choice in the lower portion of the lenses. This type of lens works best for those who are constantly switching from looking down at reading and writing materials to up and off at a distance. What is the purpose of monocles? A monocle is a type of corrective lens used to correct or enhance the visual perception in only one eye. It consists of a circular lens, generally with a wire ring around the circumference that can be...