Less invasive than a microchip in the brain and less bulky than an actual computer ... she is viewing—similar to bifocal or progressive-lens glasses. There are also contact lenses that can ...

Progressive addition lenses (PALs) are a type of multifocal lens designed to provide a smooth transition between different optical powers, allowing users to see clearly at various distances.

The best reading glasses combine modern frames with comfortable lenses that let you see better—and look stylish. Here are the ...

A progressive ... index lenses, can improve the comfort and cosmetic appearance of your lenses by allowing vision correction with a thinner and lighter lens. You may want to consider Transitions ...