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For most cataract patients, life without reading glasses or bifocals is a distant memory or even something they just dreamed about for most of their lives. Now surgical techniques and lens implants have taken a giant leap forward. No longer is the objective of cataract surgery simply to restore your distance vision with a standard "monofocal" (single vision) lens implant. Cataract surgery can now enhance your vision to extraordinary new levels. Custom Cataract Surgery can provide you with decreased dependency on distance, computer, and reading glasses.
Patients who undergo cataract surgery and are either nearsighted or farsighted can usually have these corrective errors fixed with the implantation of a standard "monofocal" lens implant. By performing this procedure, good distance vision can often be obtained without glasses. Standard "monofocal" lenses, however, do not address the need for reading glasses. Most patients who choose the standard "monofocal" option will require reading and computer glasses following cataract surgery.
The vast majority of of patients who chose Custom Cataract Surgery report that they can read a book, work on a computer, drive a car (day and night!), and play golf or tennis with an increased freedom from glasses. Although learning that you have a cataract can cause concern, once you understand how your vision can be improved, you may find that you are actually excited about surgery.
Custom Cataract Surgery addresses two conditions: Astigmatism and Presbyopia.
Astigmatism is an unequal curvature of the front portion of the eye called the cornea. An astigmatic cornea is shaped more like a football than a beach ball. There are steeper and flatter sections. An astigmatic cornea bends light varying amounts depending on where the light strikes. This causes the image to be defocused, or blurred, on the retina at the back of the eye.
A person who has both a cataract and corneal astigmatism will not regain high-quality vision after cataract surgery unless the astigmatism is corrected.
There are several surgical options to correct astigmatism. If you a planning to have cataract surgery, the most reliable and easiest option is to implant a lens that corrects astigmatism. This lens implant is called a toric lens and allows for high quality distance vision because the astigmatism is corrected from the inside of the eye. Reading glasses may still be necessary.
Presbyopia results in the inability to focus up close and affects most people over the age of 40. Typically, bifocals, trifocals, or reading glasses have been used to correct this. Presbyopia is thought to be caused by the hardening of the lens inside the eye, making it difficult for the eye's muscles to change its focus. This requires stronger and stronger eyeglass correction as you get older.
Patients who undergo cataract surgery and receive a standard "monofocal" lens implant will have instant presbyopia because the lens implants focus at only one distance. Patients who receive a standard "monofocal" implant will require glasses for reading and computer distances.
Custom Cataract Surgery with a presbyopia correcting lens allows for a marked decrease in dependency on glasses, contact lenses, and bifocals for all distances. There are several types of presbyopia correcting lens implants. There are advantages and disadvantages to each of the lens implant technologies.
You and your surgeon will discuss which lens implant best suits your lifestyle needs so that you can take advantage of their unique characteristics.
At Mittleman Eye, we perform routine eye exams to detect vision changes and disorders as early as possible in order to provide the best possible treatment. Many diseases and disorders develop slowly without causing pain or other symptoms, making regular eye exams an invaluable necessity. Some of the conditions we treat include the following: