Bifocals: How Do They Work?

Bifocals   . . . .

Yes, many people wear bifocals yet, even more want to know what exactly a bifocal lens is and how does it work?   There are bifocal lenses with a line, there are bifocal lenses with no line, called progressive lenses.   Watch this video by Dr. Darrell White at the SkyVision Centers Dr. Whiteboard for the answers!


Dr. Whiteboard Video onYouTube - Bifocals