ACUVUE® Bifocal contact lenses are designed for people with Presbyopia (inability to focus on short distances).
The lens works using concentric rings, each with a different power. Usually the near power is in the center ring or rings. Your eye adjusts by alternating between the near and far powers in the different rings.
The lens does require some getting used to, but people report that they adapt in less than a few days.
Contact lenses are medical devices that should be worn under the prescription, direction, and supervision of an eye care professional. Have your eyes examined regularly and always follow the proper instructions for the correct use and care of your contact lenses. If you experience any pain or discomfort, remove them immediately and consult your eye doctor.