The best sunglasses for men have a comfortable, lightweight design and shield your eyes from harmful UV rays. Here are our top picks from Ray-Ban, Warby Parker and more.

each for different purposes – one set for activities such as driving that require clear distance vision, and another set for close-up activities such as reading. However, carrying two pairs of glasses ...

Both of these more traditional types of glasses have telltale lines ... you won't get a "jump" like you would with bifocals or trifocals. So if you're driving, you can look at your dashboard ...

make nighttime driving even riskier. In this study, those who wore multifocal contacts had more difficulty reading road signs than those wearing standard contacts or glasses.

One group received an extra pair of plain distance glasses and they could keep using their bifocals and multifocals when they were in their own home or if they were driving a car for example.

Part of a new line of electronic eye glasses called emPower, they allow bifocal wearers to switch between different prescription settings for reading and more distant viewing. emPower spectacles ...

Unlike bifocal lenses ... watching TV, and driving, all with just one pair. The convenience may ultimately save you time and money. Glasses themselves are fashion statements.