What are progressive Lenses?
Progressive lenses are sometimes called no-line, invisible or PAL (Progressive Additive Lens). They are designed with no lines to allow the presbyopic patient to see at distance, intermediate, and near. The front surface of the lens changes from distance to near in curvature to create the additional power needed for near viewing with no interruption in vision from the top to the bottom of the lens

Today's progressive lenses are increasing in popularity as the lens of choice for the presbyope. Presbyopes are changing from their line-style multifocals to progressive lenses to enjoy the benefits of no lines and continuous vision from far to near.

Progressive lenses are identified by finding the manufacturer- engraved circles to locate the add power and manufacturer logo. The viewing areas can also be marked once the engraved circles are identified.
 

How to fit progressive lenses.

Options for Progressive Lenses.