When the lens of the eye is clouded by a cataract or blurry at near distances due to presbyopia, monofocal or multifocal intraocular contact lenses can replace a damaged lens. IOLs are implantable lenses that replace the lens of the eye when it is removed during cataract surgery.
Before intraocular lenses (IOLs) were developed to help people see after cataract surgery without the need for thick eyeglasses or special contact lenses. Thanks to cataract lens replacement, there are several types of IOL implants available to allow people to enjoy improved vision.
Intraocular lenses come in a variety of materials and designs. We will help you determine which is best for your individual needs.
Benefits of IOLs
Millions of people who have suffered vision loss due to cataracts or presbyopia are now enjoying improved vision thanks to intraocular lenses. Intraocular lenses provide remarkable vision improvement; a multifocal lens implant can alleviate the effects of presbyopia and eliminate or greatly reduce the need for reading glasses or contact lenses.
Types of IOLs
- Crystalens (Accommodative Intraocular Lens)
The Crystalens is the only intraocular lens of its kind. This lens is an accommodative lens, which makes it unique among intraocular lenses which provide multifocal vision. The Crystalens is a single focus lens which works with the muscles of your eyes to give you improved vision. Crystalens has the ability to “accommodate,” or flex, allowing it to focus on distant, intermediate, and near objects. The patented hinged design enables the lens to actually change position to focus at whatever distance your eye is looking.
- Tecnis Multi-Focal IOL
The Tecnis Multi-Focal IOL is specifically designed to offer both distance and near vision. This lens is typically implanted at the time of cataract removal. It is also sometimes used during an elective “refractive lens exchange” procedure when better distance and/or near vision is desired. The goal is to achieve less dependence on glasses or contact lenses. The Tecnis Multi-Focal IOL brings objects at varying distances into focus using a technology called diffraction. A series of rings on the entire inner surface of the lens focuses the light from objects in our vision at varying distances. This allows for a smooth transition of focus between distant, intermediate and near targets.
The ReSTOR lens is a premium intraocular lens that is designed to provide a full range of clear vision – distance, intermediate and near – allowing for less dependence on glasses or contact lenses. The ReSTOR lens is implanted in the eye after removal of the natural crystalline lens of the eye, typically for the treatment of cataract, but may be done electively in a procedure called “refractive lens exchange”.
- Toric IOL
Toric IOLs are designed for astigmatism correction after cataract surgery. Recent advancements in Intraocular Lens technology now make it possible to provide clear vision after cataract surgery to those with astigmatism. In years past, cataract surgery removed the cataract, but a patient with high astigmatism still required glasses for near and distance vision. The design of the Toric lens makes it possible to reduce or eliminate astigmatism and significantly improve uncorrected distance vision.