An intraocular lens, or IOL, is an artificial lens used to replace a natural lens that has been damaged by cataracts. Like a real lens, an IOL works by focusing light that comes through the pupil and cornea onto the retina. Like prescription glasses, an IOL can be tailored to match the needs of the patient and provide them with the best possible vision.
Types of IOLs
The monofocal IOL is the oldest type. They are designed to correct vision for only types of distance: near, intermediate or far. Most patients who choose monofocal IOLs get monofocals designed for long distance and use reading glasses when they need to see something up close.
A toric lens is a monofocal lens designed for people who also have astigmatism. A patient with astigmatism has malformed corneas that cause both distant and near objects to appear blurred.
Multifocal, or accommodative IOLs, correct the patient’s vision for several different types of distance. They can, therefore, eliminate the need for wearing glasses. A multifocal IOL has a series of focal rings or zones built into it that allows the patient to clearly see both distant and close objects. The multifocal IOL is also designed to let specific eye muscles move it back and forth and thus change focus much like a natural lens.
What is TECNIS®?
TECNIS® is a group of IOLs made by Abbot Medical Optics. They can be monofocal, toric or multifocal. Like other IOLs, a TECNIS® IOL replaces a natural lens and is implanted during cataract surgery.
How Do TECNIS® Multifocal Lenses Work?
TECNIS® multifocal lenses are FDA-approved IOLs that work like a bifocal lens inside the eye. For distance vision, it can create a clear image of something far away while providing less detailed images of nearby objects. It does the reverse for near vision. TECNIS® multifocal lenses can provide clear vison of far, near and intermediate objects without movement of the lens. In other words, it does not work with the eye muscles.
The TECNIS® multifocal lens gives the patient corrected vision comparable to that of a young adult’s. The patient will no longer see the hazy images caused by cataracts, but will be able to see clearly. They will also regain the ability to perceive colors fully. In addition, the patient will gain improved night vision.
The implantation surgery and the recovery time are similar to that of other lens implant procedures. The patient’s vison will improve during the week after surgery.
Who Can Use TECNIS® Multifocal Lenses?
The TECNIS® multifocal lens was designed for people who need to undergo cataract or lens replacement surgery. However, anybody who has a normal eye exam but needs to use bifocals or reading glasses may also be a candidate.
Are You a Good Candidate?
To learn more about the benefits of TECNIS® multifocal lenses, make an appointment at Live Oak Ophthalmology in Wilmington. Our medical professionals can address any questions or concerns you may have about this special type of lens. Contact our office today to schedule your consultation.