The new Alcon LenSx laser performs many of the initial key steps of cataract surgery that were previously perfomed using a blade. The LenSx laser uses high resolution images and measurements to customize certain steps of cataract surgery that can lead to more precise and accurate results. This is especially important when a patient selects a premium intraocular lens to help them become less dependant on glasses after cataract surgery.
Conventional cataract surgery uses a blade to make the corneal incisions to allow the instruments to be inserted into the eye to remove the lens. A bent needle is than used to make an opening in the capsule that surrounds the lens. The ultrasound machine is than used to remove the cataract lens. The new LenSx laser can now be used to make the corneal incsions without a blade, makes the opening in the capsule to reach the cataract and helps break the cataract into pieces before the ultrasound machine is used. The LenSx laser can also make additional corneal incision to help correct astigmatism. Astigmatism is an irregular shap of the eye that causes blur at distance and near if not corrected. This can be corrected with glasses but the laser correction during cataract surgery allows patient to be more independant from glasses after surgery. The LenSx laser can also provide more accurate results with implantation of a premium intraocular lens such as a multifocal IOL or Toric IOL.
Monofocal lens: intraocular lens that gives clear vision at one distance, either for reading/near or for driving/distance. You will still need to wear glasses for either reading or driving depending on the distance the IOL is selected to correct.
Toric lens: If your astigmatism is larger than what can safely be corrected by the LenSx laser, a toric lens is specially designed to correct your amount of astigmatism when it is implanted in the eye during cataract surgery. The lens allows vision to be clearer without glasses at one distance. You will still need reading glasses for near work.
Multifocal lens: This lens has several rings of different powers built into the lens. This allows patient to have the potential of good vision at near, intermediate, and distance. This may allow patients to be independant from glasses after cataract surgery. Patients may, however, have more problems with glare or halos due to the different power rings in the IOL.