Laser Cataract Surgery Systems
A number of medical device companies worldwide manufacture systems for performing laser cataract surgery. A number of systems have attained FDA approval and are currently available for laser-assisted cataract surgery performed in the United States:
The LenSx system produced by Alcon was the first femtosecond laser system to gain FDA approval for cataract surgery performed in the U.S. The LenSx system is approved for corneal incisions, capsulotomies and lens (cataract) fragmentation and has been used in more than 400,000 cataract refractive procedures worldwide.
Presbyopia – Multifocal Intraocular Lens (IOLs)
Previously, the main goal of cataract surgery was to restore a person’s vision for driving, watching television, and other distance vision tasks. To see clearly up close, a person would still need to wear bifocals or reading glasses after the cataract removal.
Today, cataract patients have the choice of multifocal IOLs that can correct vision far away, up close and all distances in between. These advanced presbyopia-correcting IOLs are in many ways similar to bifocal and multifocal contact lenses. But because multifocal IOLs are implanted inside the eye, they don’t require any care and routine replacement like contact lenses do.
Many patients who choose multifocal intraocular lenses find they can be glasses-free or may only need reading glasses occasionally for reading small print after cataract surgery.
Astigmatism Correcting Lens – Toric Intraocular Lens (IOLs)
Like toric soft contact lenses, toric IOLs can correct astigmatism because they have different powers in different meridians of the lens. They also have alignment markings on the peripheral part of the lens that enable the surgeon to adjust the orientation of the IOL inside the eye for optimal astigmatism correction.