A digital lens is to eyeglasses what HD technology was to TV. High-definition lens and digital lens are words used interchangeably to describe eyeglass lenses made using computer controlled surfacing equipment. While traditional eyeglass lenses are made using an abrasive grinding process, a digital lens is manufactured using computer controlled laser technology that is much more precise than conventional tools. In other words, the eyeglass lenses are optimized precisely for your eyes. Although eyeglasses correct vision to 20/20, some people may not be satisfied with how they see.