Multifocal glasses included progressive lenses and bifocal lenses. They are perfect for people who don't like to switch from reading glasses to distance vision eyeglasses.
Progressive glasses have no definitive line like the line seen in bifocal prescription eyeglasses. And this kind of lenses is considered more contemporary and aesthetically-pleasing then traditional bifocal glasses.
There are various kinds of frames from GlassesShop.com that can be processed into progressive glasses. These frames are made for different groups of people, so they vary from material, color and price, leaving you a great number of choices.