Bifocal Lens
Lens with two points of focus, designed to relieve presbyopia. The lower part of the lens allows near vision; the rest of the lens is designed for far vision.
Related Links
Bifocal Contact Lenses – A Consumer Guide
How Do Bifocal Eyeglasses Work?
Image formation by bifocal lenses in a trilobite eye? – ScienceDirect
Get Used to Your New Bifocals or Progressives
Bifocal and Astigmatic Lens Implants – Friedman Eye Center
Occupational Bifocal and Trifocals
Related Videos
[huge_it_videogallery id=”26″]