Premium Lens Implants for Seeing at all Distances: Tecnis, Crystalens, ReSTOR and Toric Lens Implants
Dr. Fishman offers Premium lens implants including the Tecnis, Crystalens and ReSTOR lenses. In most cases, these lenses provide both reading and distance vision without glasses for people undergoing cataract or refractive lens implant surgery. These new premium lens implants have been FDA-approved recently for cataract surgery, correction of both distance and reading vision. Each of these premium lens implants works slightly differently, and not all implants are right for all patients. In some cases, Dr. FIshman may decide that a monofocal lens is the best choice for you.
Dr. Fishman has extensive experience implanting all of the lenses described here and takes pride in helping each patient make an unbiased, informed decision on an implant that will provide a lifetime of clear vision. Schedule a consultation with Dr. Fishman and find out whether TECNIS, Crystalens or ReSTOR is right for you. Which Lens Implant Is Best For You? Dr. Fishman will spend time discussing the options and explaining the lenses in detail.
Lens implants are meant to last a lifetime. Fortunately, most people will be very happy with whatever lens implant choice they make. The Crystalens, TECNIS, and ReSTOR lenses have all been rigorously tested by the US FDA before being approved for use. For most people, any of the three will provide excellent results.
AMO TECNIS — The Newest Generation of
Advanced Multifocal Lenses
The Tecnis Multifocal IOL is based on the aspheric optic design of the Tecnis IOL (Abbott Medical Optics, Inc.), which was engineered to reduce the spherical aberration of an average cornea (which enhances clarity). Based on a principle of diffraction, the Tecnis Multifocal IOL features diffractive rings on its posterior surface. The rings start very close to the optics center and then continue out toward the periphery. As a result, the multifocal effects are not affected by pupil size or lighting conditions. Even in dim light, distance and near vision is quite good. The lens provides patients with excellent near and distance vision, each of which is distinct. Most patients also report good intermediate or arms' length vision as well. Immediately after surgery, some patients may notice haloes around lights when driving at night. However, as the eye adjusts to the lens, the visual impression of rings may lessen and usually goes away over time.
Crystalens — Far, Near, and Everything In-Between
The Crystalens is an FDA-approved intraocular lens for the visual correction of adults with cataracts (clouded lenses) with or without presbyopia, or lenses that have aged or become more rigid. The Crystalens was modeled after the human eye. Like the natural lens, it uses the eye muscle to flex and accommodate in order to focus on objects in the environment at all distances. The Crystalens dynamically adjusts to your visual needs.
The Crystalens accommodating intraocular lens is made with hinges on each side that are designed to allow the optic, or the part of the lens that you see through, to move back and forth as you constantly change focus on images around you. The crystalens is a small lens enabling it to flex or bend as you focus your vision.
- The first and only FDA-approved accommodating intraocular lens
- The only lens that uses the natural focusing ability of the eye
- The only lens that provides a single focal point throughout a continuous range of vision from far to near, and everything in between.
Few patients with Crystalens have experienced glare, halos and night vision problems. Crystalens® focuses only one image to the back of the eye, unlike a multifocal lens that projects multiple images that are not entirely in focus, requiring your brain to “adjust” to the differences. In addition, Crystalens vision is sharp and crisp because 100% of the light rays are available and distributed – where you need it. More than 40,000 crystalenses have been implanted worldwide
The Crystalens implant (Bausch & Lomb) can give reading vision (within 1-2 feet), arm's length (2-3 feet), and distance vision without glasses because this implant theoretically adjusts its position within the eye as the eye looks from far to near subjects, much like an 'auto focus' mechanism on a camera. The Crystalens is powered by the same ciliary body muscles that move and focus the eye's own natural lens. Its unique, hinged shape allows for this lens movement and gives a seamless transition from far to arm's length to near vision. Most people with the Crystalens have clear far vision (driving, television) and intermediate vision (arm's length, computer screen) without any glasses. About 95% of people can also read newsprint without glasses. Some people do need glasses for fine print, especially in dim light. Of the three lenses, the Crystalens is most likely to provide the best vision for driving at night.
Alcon ReSTOR — The Space-Age Bifocal
Like TECNIS, the ReSTOR lens is a non-moving lens implant. It too can give distance and near vision simultaneously. Rather than having three separate focusing zones like TECNIS, however, the ReSTOR lens focuses vision using an "apodized" surface. This high-tech manufacturing process gives the lens a gradual blending of focusing power throughout the entire lens surface. With the ReSTOR lens, 97% of people can see both distance objects (road signs) and near objects (reading material within 1-2 feet) without difficulty, especially in good light. Arms length vision (the computer screen, for example) at 2-3 feet is less clear, and most people will need glasses for these kinds of tasks. In dim light, the lens is designed to give better distance vision. However, 5% of people with ReSTOR do notice significant haloes or glare around lights at night.
Toric Lens Implants for reducing
Astigmatism after Cataract Surgery
Many patients suffer from this common eye condition known as astigmatism. Often this astigmatism can lead to blurred or impaired vision if it becomes moderate or severe. The cause of the blurred and impaired vision is the result of the eye's cornea or lens having an irregular shape. A normal eye's cornea and lens have a circular shape whereas an eye with astigmatism has a longer more oval shape.
Traditionally, surgeons implant a monofocal or standard intraocular lens (IOL) when having cataract surgery. If you have astigmatism, you may still experience blurred and distorted vision because a standard IOL cannot correct corneal astigmatism. To achieve quality distance vision with a standard IOL, you may still require eyeglasses, contact lenses, or further surgery.
If you have a desire to have little or no dependence on eyeglasses for distance vision, then a Toric lens would be better for you. The unique design of the AcrySof® Toric lens provides significantly improved distance vision and may reduce the need for corrective lenses.
Dr. Fishman offers Toric IOLs for astigmatism correction after cataract surgery. The recent advancements in Intraocular Lens (IOL) technology have now made it possible to provide an effective solution for patients that have astigmatism. Until recently, patients that were IOL candidates and had astigmatism, had no option built into the lens, which would correct the astigmatism aspect of their visual condition. Surgeons would typically perform refractive surgery or LASIK after the insertion of an IOL to correct the complete visual picture. If patients did not have astigmatism correction after IOL implantation then contacts or glasses would be required to deal with the astigmatism. With advancements in the optics of IOLs the manufacturers have now been able to accommodate for astigmatism.
Refractive Lens Exchange
Traditionally, presbyopia, which happens to all of us as we age, has always meant glasses for clear reading vision. It's a condition not even correctable by laser vision correction. Luckily, there is an option - refractive lens exchange. Refractive lens exchange is allowing patients a clear alternative to reading glasses and is capable of reducing or eliminating presbyopia by using an advanced multifocal intraocular lens. Dr. Fishman uses Tecnis, Crystalens, and Restor lenses which replace the eye's natural lens during refractive lens exchange.
While LASIK concentrates on correcting the cornea, refractive lens exchange replaces the natural lens of your eye with an advanced multifocal or accommodating intraocular lens (IOL), allowing clear vision up close, far away, and in between. Additionally, patients undergoing the refractive lens exchange procedure will never have to worry about cataracts as they age, since the advanced refractive lens exchange lens will remain clear.
Refractive lens exchange works best for older patients who are hyperopic (farsighted) or myopic (nearsighted) and want to lessen their dependence on reading glasses.
The Refractive Lens Exchange Procedure
During the refractive lens exchange procedure with Dr. Fishman, a small incision is made at the edge of the cornea. A special probe is inserted through the incision to gently break up and suction out the damaged lens. The intraocular lens implant is then inserted into place. The entire refractive lens exchange procedure is completed in about 20 to 25 minutes, and visual recovery is rapid.
What Are the Benefits of Refractive Lens Exchange?
There are several advantages to the refractive lens exchange procedure, including:
- Quick visual recovery
- Permanent results without the use of a laser
- Eliminates the need for cataract surgery in the future
- Eliminates the dependence on glasses and contact lenses