For many people, different strengths are needed for seeing at different distances. Bifocal lenses allow the wearer to look through two areas of the lens: One area focuses on distant objects, the other is used for reading.
![bifocal lenses article](/images/stories/bifocal.jpg)
For many people, different strengths are needed for seeing at different distances. Bifocal lenses allow the wearer to look through two areas of the lens: One area focuses on distant objects, the other is used for reading.