Q) What are the different types of glasses lenses? A) The two primary types are a single vision lens and a multi focal lens. A multifocal lens means it has both an up-close and a distance prescription built into the lens. These lenses can be a lined multifocal (like a bifocal, where you can see the line) or an unlined multifocal (aka a progressive, which does not look any different from the standard single vision lens.). Q) A)