San Jose Eye Institute

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What is the Eyhance intraocular lens?

Eyhance Toric

The Eyhance intraocular lens and the Eyhance Toric II intraocular lens are made by Johnson & Johnson and are used to replace the cataract during cataract surgery. These lenses give patients an increased range of vision without using glasses, and do not compromise night vision.

With a standard monofocal intraocular lens, patients are typically able to see clearly far away without glasses. The inability to also see intermediate distances or close objects clearly without bifocals or reading glasses is known as presbyopia.

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What is the Vivity intraocular lens?

Vivity Toric

The Vivity intraocular lens is an intraocular lens used to replace the cataract during cataract surgery. It is classified as an “Extended Range of Vision” lens, meaning that patients with this intraocular lens will be able to see a range of vision without glasses.

With a standard monofocal intraocular lens, patients are typically able to see clearly far away without glasses. The inability to also see intermediate distances or close objects clearly without bifocals or reading glasses is known as presbyopia.

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What is the PanOptix Lens?

PanOptix Trifocal

The PanOptix lens is an intraocular lens that is implanted during cataract surgery after the cataract has been removed. In contrast to a standard monofocal lens, the PanOptix lens has the ability to treat presbyopia, a condition that prevents patients from seeing both far and near at the same time.

This lens is recently FDA approved and is the first to be classified as a trifocal intraocular lens. It is the next evolution in the treatment of presbyopia, building from its predecessor, the ReSTOR multifocal lens.

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What is the Tecnis Symfony Toric Lens?

Symfony Toric Lens

The Tecnis Symfony Toric lens is an intraocular lens that is implanted during cataract surgery after the cataract has been removed. Briefly, the Symfony lens allows patients to see a continuous range of clear vision, usually from far away distances to intermediate range distances (such as computer screens), without the need for bifocals or progressive glasses. Read more details about the Symfony lens here.

However, to achieve this range of clear vision, the patient cannot have significant astigmatism, or warping on the surface of the eye. For those patients who do have astigmatism, the Symfony Toric lens can be used to address this problem.

Astigmatism can be thought of as an asymmetric warping on the surface of the eye, like a football instead of a basketball. This “football” has a certain orientation, or axis, on the eye. The toric component of the Symfony Toric lens also has a “football” shape, which is marked by two sets of linear dots on the lens surface. If the two “footballs” are placed opposite of each other (90 degrees apart), they can cancel each other out and lead to an overall “basketball” appearance, essentially reducing the astigmatism of the eye.

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What is the Crystalens?

Crystalens

The Crystalens is an intraocular lens that is implanted during cataract surgery after the cataract has been removed. In contrast to a standard monofocal lens, the Crystalens allows patients to see both far and near in focus.

Unique to this lens is that it is essentially a monofocal lens that dynamically flexes inside the eye. The Crystalens utilizes the natural muscles within the eye to adjust its shape, and thereby, its effective power within the eye. As a result, there is range of vision that is in focus, not just two separate far and near distances.

Because the Crystalens depends on the muscles of the eye to focus between far and near, its effect can be variable, depending on the strength of the eye muscles. Although some patients can see a large range of distances in focus, the majority are only able to see two of the key distances in focus, usually from far (TV, driving) to intermediate (computers, reading newspaper). Rarely, the range is less, with the Crystalens appearing to move only minimally. The effective range is not age-dependent, and cannot be predicted before surgery.

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