How many progressive lens designs do you think are on the market today? 25? 50? 150? Actually, more than 350 different PALs (Progressive Addition Lenses) are now available, according to The Vision Council. That’s an astounding amount of variety, even taking into account the knock offs and older designs still out there. I’d argue that this high level of diversity in the PALs market is good for both ECPs and consumers. It means there’s lots of competition, which stimulates growth. The continuing refinement of digital lens design technology has insured a seemingly endless flow of new PAL designs. Read More.