The Cause of Presbyopia

Presbyopia is caused by loss of flexibility in the natural lens inside your eye as you age. The natural eye lens becomes harder and loses its elasticity, making it difficult to focus on objects or reading material held up close.

Acuvue Bifocal Contact Lens and Presbyopia

An Acuvue bifocal contact lens corrects presbyopia by having two power lenses in one. The first part of the contact lens corrects the near vision and the other the distance vision.

There are a few types of Acuvue bifocal contact lens designs:

Aspheric – This is a design which changes power gradually from the center towards the edge of the lens. This change in lens allows for intermediate distance correction.

Concentric – This design utilizes the center of the lens for one power and the outside for the other power of the lens.

Translanting – This design offers the near vision correction on the bottom of the lens and the distance correction on the top of the lens. Usually an Acuvue bifocal contact lens is designed with the bottom of the lens flat to prevent it from rotating.