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No Glasses, No Contacts after Cataract Surgery
Imagine being able to see without relying on eyeglasses or contact lenses. Now, there are amazing high technology intraocular lenses that make it possible for Dr. Aaker to perform cataract surgery by removing the cloudy lens, and replacing the old lens with a lens that corrects astigmatism or allows you to see both distance and near in a single procedure. This may allow you to break free from eyeglasses or contact lenses.
The surface of a normal eye's cornea has a spherical curve, like the shape of a basketball, light rays passing through it bend toward its center and focus on one spot. Sometimes, the surface of the cornea is curved more like a football, with both flatter and steeper curves. When the surface of the cornea has an uneven curvature, vision becomes distorted. This common irregularity, called "corneal astigmatism," causes blurred or distorted vision because light rays are not focused at one spot to provide clear vision. A person who has both a cataract and corneal astigmatism will not regain high-quality distance vision without glasses after surgery to remove the cataract unless the astigmatism is also corrected. There are several surgical options that Dr. Aaker may choose to treat astigmatism, such as LASIK, astigmatic keratotomy (AK), limbal relaxing incisions (LRI), Laser based cataract surgery or Toric lens implantation which can be done at the time of your cataract surgery.
Toric lens: A better option for quality distance vision
If you are planning to have surgery to remove a cataract, you now have an additional option... an implantable lens that makes it possible to treat the cataract and correct the corneal astigmatism at the same time. Dr. Aaker will recommend the option that is best for you.
What exactly is a Toric IOL?
Surgery to treat cataracts is an outpatient procedure where an eye surgeon removes the clouded natural lens and replaces it with an artificial lens. Traditionally, the surgeon implants a monofocal artificial lens, commonly called an "intraocular lens" (IOL). If you have astigmatism, however, 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 freedom from eyeglasses for distance vision is important to you, you now have a better option. The unique design of the Toric lens provides significantly improved distance vision and may reduce the need for corrective lenses.
As we perform daily activities such as reading, watching television or working at the computer, our eyes are constantly focusing on objects at varying distances – up close, far away and in-between. The ability to quickly change focus throughout our range of vision is called accommodation. Accommodation: The ability of the eye's natural lens to change shape to focus on objects at various distances. Unfortunately, we begin to lose this ability as we grow older, gradually becoming more and more dependent on bifocals or reading glasses. Presbyopia is a gradual loss of flexibility in your eye's lens and surrounding muscle fibers that makes it harder for the eye to focus up close. It's why many people develop the need for reading glasses.
Presbyopic Multifocal Lenses (Tecnis Multifocal, AcrySof Restor, Symfony): A better option for quality vision at distance, near and anywhere in between.
Until recently, life without reading glasses or bifocals was not an option for cataract patients because traditional monofocal intraocular lenses could only improve distance vision. The multifocal lens, on the other hand, allows you to see near, far, and in between. Most patients find they can read a book, work on the computer, and drive a car-day or night-with an increased freedom from glasses.
In fact, 4 out of 5 patients in the clinical study who had the AcrySof ReSTOR lens in both eyes reported never having to wear glasses for any task, and in another study 85% of patients never had to wear glasses with the Tecnis +4.0 Multifocal lens. In another study with the Tecnis Multifocal +2.75 lens 98% of patients could function at intermediate and far distances without glasses. Since there are multifocal lenses of different powers, Dr. Aaker will speak with you to choose the lens that works best for your vision.
Incredible range of vision day and night
A multifocal lens will help you have reading, intermediate, and distance vision. Different activities are usually performed with the various depths of vision. Near vision is used to read books, and medication bottles; intermediate vision is used for computer screens, cell phones and car dashboards; while distance vision is usually 7 feet or further from your eyes like street signs and movie screens. The multifocal lenses allow for vision in this full range while a standard lens is usually more limited to single distance range.
Symfony and Crystalens
For patients with lifestyle choices that include extensive night time driving or operation of a vehicle or aircraft at night, a Symfony lens or Crystalens may be a better choice of intraocular lens that is placed during the cataract surgery. Symfony and Crystalens tend to have lower difficulty with glare, halos, and nighttime driving.