cataract surgery, restor lens
  cataract, eye care
Vision with cataract

A cataract is a cloudy area in the normally clear lens in the front of the eye. They are not a film over the eye and they are not caused by "overusing" the eyes -- rather, they are caused by a chemical change of unknown origin in the eye. They cause blurred or distorted vision.

Risk factors for developing cataracts include being over 55 years old, having eye injuries or disease, having a family history of cataracts, smoking cigarettes or using certain medications.

There is no pain associated with the condition, but there are several symptoms that indicate failing vision due to cataracts. These include:

  • Blurred/hazy vision
  • Spots in front of the eye(s)
  • Sensitivity to glare
  • A feeling of "film" over the eye(s)
  • A temporary improvement in near vision

Replacement surgery may be recommended for people who are significantly affected by cataracts.

Mark F. Pyfer, MD presenting on EyeWorld sponsored panel for
Femto Laser-Assisted Cataract Surgery
at ASCRS 2015 in San Diego

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Cataract Surgery

  cataract surgery
Cataract Removal
cataract surgery, lens replacement
Lens Replacement

If cataracts interfere with your ability to read, work, or do the things you enjoy, you'll want to consider cataract surgery. It is the only proven means of effectively treating cataracts.

The most common surgical procedure in the U.S., cataract surgery is relatively painless and has a very high success rate -- more than 90 percent of patients regain useful vision. During the procedure, the natural lens is removed and replaced with an artificial one called an intraocular lens or IOL.

We perform a minimally invasive, no-stitch cataract surgery called phacoemulsification ("phaco") surgery. First, the eye is numbed with anesthesia. Then a tiny incision is made in the eye to make room for a small ultrasonic probe. This probe breaks up, or emulsifies, the cloudy lens into tiny pieces and gently sucks, or aspirates, those pieces out of the eye.

After the cloudy lens has been removed, a new IOL is implanted in its place. With the recent advance of foldable IOLs, these artificial lenses can be implanted through the same small incision from the phaco procedure. Once moved into position inside the eye, the IOL unfolds to its proper shape, restoring clearer vision.

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IOLs and the ReSTOR® Lens

iol, restor lens

For years, patients who underwent cataract surgery had to wear glasses or contact lenses afterwards to see clearly. The newly developed ReSTOR® lens has overcome this problem, allowing patients to see better than ever before -- without the help of corrective eyewear.

An IOL, or intraocular lens ("lens inside the eye"), is an artificial lens implanted in the eye to replace a natural lens that has been clouded by a cataract.

Technology for IOLs has been advancing rapidly. The latest FDA-approved IOLs can be implanted through a tiny incision, then work in harmony with muscles in the eye so that after cataract surgery, patients retain the ability to focus on objects at all distances.

The ReSTOR® lens improves upon ordinary IOLs by providing comprehensive focusing capabilities so patients can see clearly in a range of lighting conditions and at all distances -- at noon or midnight, nearby or far away, and anywhere in between. Up to 80% of patients who use the ReSTOR lens don't need to rely on glasses or contact lenses after surgery.

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To learn more about the ReSTOR® lens, visit

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