A cataract is a cloudy area in the normally clear, natural lens of the eye. Cataracts are caused by a chemical change of unknown origin in the eye, which causes blurred or distorted vision. Cataracts are a natural part of aging and cannot be prevented from forming, but early detection through regular eye exams can help maintain the clearest vision possible.
While every person will develop cataracts, they more commonly occur in people over the age of 55. They may also occur at an earlier age in people who have had eye injuries or other ocular or systemic disease, have a family history of cataracts, smoke cigarettes or use 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
Vision loss from cataracts can often be corrected for a while with prescription glasses or contact lenses. For people who are significantly affected by cataracts, replacement surgery may be the preferred method of treatment. During cataract surgery, which is the most common surgical procedure in the country, the cloudy natural lens material is removed and replaced with an artificial lens called an intraocular lens or IOL.
Testimonial: Astigmatism Correction Cataract Surgery
Advanced Small Incision Cataract Surgery
During cataract surgery, a small ultrasonic probe is inserted into the eye which breaks up, or emulsifies, the cloudy lens into tiny pieces and gently sucks, or aspirates, those pieces out of the eye. Phaco surgery requires a small incision of only 3.2 mm or less. To make your procedure as painless as possible, anesthesia is a combination of local and/or topical along with IV sedation.
With the recent advance of foldable IOLs, artificial lenses can be implanted through the same small incision that is created in the phaco procedure. The IOLs are made of a flexible material allowing them to be folded for implantation. Once inside the eye, the lens unfolds and returns to its original shape.
The following IOLs are newer generation of lenses that offer an expanded range of vision than standard implants.
Lensar Laser Cataract Surgery vs. Traditional
Dr. Mahanti has been using flexible IOLs for years to replace the eye's cloudy lens during cataract surgery and help patients enjoy clear vision again. The ReSTOR® lens improves upon the ordinary IOL by using apodized diffractive technology to provide a full range of focusing distances from near to far. A series of 12 gradual "step heights" of 0.2-1.3 microns each (thinner than a human hair and smaller than a red blood cell) in the center of the IOL create seamless focusing ability, while the peripheral refractive region helps to enhance distance vision. Apodization also allows the lens to work with the pupil to distribute light evenly in the eye in different lighting conditions and activity levels. Alcon® reports that up to 80% of patients with and without presbyopia who use the ReSTOR lens don't need glasses after surgery.
Testimonial: Multifocal Lens
Generic Multifocal IOL
Tecnis Multifocal Lens
The Tecnis Multifocal Lens enables you to see clearly at near, intermediate, and far distances without the need for glasses in all light conditions. Immediately after surgery, some patients may notice rings around lights when driving at night. However, as the eye adjusts to the lens over time, the visual impression of rings typically lessens or goes away. Whether the Tecnis Multifocal Lens is the right choice for you depends on your personal preferences, lifestyle, and the overall health of your eyes.