How Do Acuvue Bifocal Contacts Work?

Design

Acuvue Bifocals are designed with multiple concentric zones of power. Certain rings are for distance power, others are for near vision. The pupil reacts to light by dilating or constricting, and this results in specific zones being simultaneously viewed when inside the pupil diameter. The eye and the brain work together to process the visual information from both distant and near targets. Eye doctors typically recommend a one-week adjustment period before finalizing your contact lens prescription.

Acuvue Bifocal Candidates

Acuvue Bifocals are available for near-sighted and far-sighted people (+6.00D to -9.00D) for the correction of presbyopia with add powers of +1.00D, +1.50D, +2.00D, and +2.50D. Presbyopia is the gradual loss of the ability to focus clearly on near targets, such as fine print at a distance of 12 inches. These lenses can function effectively for people with low amounts of astigmatism. Astigmatism or cylinder power under 0.75D typically results in more successful visual results. Dry eye and other conditions can make contact lens wear difficult. An eye doctor will only prescribe contact lenses after a thorough eye examination.

Precautions

The primary risk associated with contact lens wear is infection. An eye doctor recommends a specific wearing schedule and cleaning regimen to decrease the incidence of adverse effects. Sleeping in contact lenses, extending wearing time, and improper disinfection techniques are a few of the major risk factors. Acuvue and other contact lens companies have developed bifocal contact lenses with higher oxygen transmission and new surface treatments. The advancement in lens materials and technology has improved success rates with contacts, but only your eye doctor can diagnosis issues and prescribe appropriate treatments to preserve ocular health.

References

Article reviewed by Connie Bye Last updated on: Oct 27, 2009

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