Overview

Advances In Intraocular Lens Options

Advances In Intraocular Lens Options

Cataract surgery is a once-in-a-lifetime investment in your eyes that can improve your quality of life for the long term. Advanced lens options can reduce or eliminate the need for glasses after your cataract surgery.

Intraocular lenses are one type of advanced lens that patients can use after cataract surgery.

Types of Intraocular Lenses (IOLs)

Multifocal Lenses

State-of-the-art multifocal intraocular lenses reduce the need for reading glasses after cataract or lens replacement surgery. These lenses are designed to address the problem of presbyopia, in which people over the age of 40 begin to lose their ability to read or see up close. In the past, when an artificial lens, called an intraocular lens implant or IOL, was placed inside the eye during cataract or lens replacement surgery, it could only focus at a single distance. These IOLs are called single-focus IOLs and allow an eye to see either far away or close-up but not both.

Advanced intraocular lenses, called multifocal IOLs, provide correction for both near and distance vision. And both near and far objects can be in focus at the same time. Many people get used to multifocal IOLs right away. Others feel a little imbalanced at first but get used to it within a matter of days or weeks.

The Symfony Lense offers Extended Depth of Field

The Tecnis Symfony® lens, approved by the FDA in July, 2016, is an exciting advance in presbyopia lens technology. It provides excellent vision without glasses for distance (driving, watching TV) and intermediate visual tasks (computer work), and good vision quality at near distance (reading labels, cell phone) for most patients. The design of this new lens is also a leap forward in minimizing concerns about glare and halo that some patients experience after cataract surgery.

In addition, the FDA approval includes a version of the lens for people with astigmatism—the Tecnis Symfony Toric IOL. This means that patients with greater levels of astigmatism can now potentially choose to have a presbyopia-correcting lens without having to undergo other surgical procedures to correct the astigmatism. Visual results without glasses and patient satisfaction have been very high with this lens in reported clinical trials.  

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Astigmatism Correction with Toric Lenses

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The cornea (front window) of the eye can sometimes be more cone-shaped than spherical, which is called astigmatism. If you have astigmatism, leaving it untreated would mean you would need glasses for both distance and near vision after cataract removal. Your doctor can use laser reshaping of the cornea or an astigmatism-correcting lens implant to treat your astigmatism at the time of cataract removal.

Accommodating Lens Implants

These implants change position within your eye based on your eye muscle effort. Accommodating lenses can treat astigmatism, but give slightly less near power than multifocal lenses. They are typically used in patients who aren't eligible for multifocals because of mild or moderate glaucoma, diabetic retinopathy, retinal scar tissue, corneal scars, or prior radial keratotomy. Medicare provides partial coverage for these lenses.

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