An intraocular lens, or IOL, is a type of implant. It’s an artificial lens used to replace a natural lens damaged by cataracts. An IOL works like a real lens: it focuses light that enters the eye through the pupil and cornea. An IOL will have the appropriate prescription to give the patient the best possible vision. TECNIS® Multifocal lenses represent one of the greatest advancements in intraocular lenses.
Types of IOLs
The monofocal IOL is the oldest and most common type. They are designed to provide corrected vision at far, intermediate or close distances. Most patients with monofocals choose to have the monofocal set for distance vision, so they can do things like drive without wearing glasses. They then use reading glasses for seeing things that are close up. A toric IOL is a type of monofocal lens designed for people with astigmatism.
A multifocal or accommodative IOL is designed to reduce the need for glasses altogether. It has a series of focal rings or zones built into it that can let the user see near and far objects with equal clarity. The IOL is also designed to be able to work with certain eye muscles that move the lens much like a natural lens. By moving the IOL forwards and backwards, the eye muscles can change the focus. A multifocal IOL thus works like a set of bifocal or trifocal glasses inside the eye.
Multifocal IOLs work best when they are implanted in both eyes. It usually takes the brain six to twelve weeks after the operation on the second eye to adjust to the IOLs. Once the patient’s brain has adapted to the implants, the patient’s vision will have reached its maximum improvement.
What is the TECNIS® Multifocal IOL?
The TECNIS® Multifocal IOL is an artificial lens marketed by Abbot Medical Optics (AMO). The FDA approved TECNIS® for use in the United States in 2009. AMO has claimed that 90 percent of the patients who get TECNIS® Multifocal lenses no longer need glasses. The company has also claimed that the IOL provides good image quality in all light conditions regardless of the size of the patient’s pupils. AMO claims that TECNIS® Multifocal IOLs can give people 20/25 vision.
There are three types of TECNIS® Multifocal lenses, and each one emphasizes a specific range. The TECNIS® +4.0, for example, is designed to provide “peak performance” for close-up vision. It would be a good option for people who do a lot of reading or detail work. Since it’s a multifocal lens, the patient may still not have to wear glasses if they go driving. The TECNIS® +3.25 is designed for “longer reading distances”, such as computer work, while the TECNIS® +2.75 works best for intermediate distances and is best suited for activities like grocery shopping or golfing.
Who is a Good Candidate for the TECNIS® Multifocal IOL?
The best way to determine if you are a candidate for TECNIS® Multifocal lenses is to visit Live Oak Ophthalmology, with locations in Wilmington and Brunswick County. Contact us today to schedule your appointment to learn more about how this amazing technology can benefit you.