Cataracts are clumps of protein that collect on the lens of an eye and interfere with vision. Normally, light passes through the lens (the clear tissue behind the pupil) and focuses on the retina. The retina is the light-sensitive layer of the eye that sends visual signals to the brain. A cataract occurs when the normally clear lens becomes cloudy. Most cataracts develop slowly over time and are a natural result of aging. Once cataracts become large enough that vision loss interferes with everyday activities such as driving, reading, or watching television, they should be surgically removed.
A cataract develops when protein in the lens clumps together and blocks light from reaching the retina. It is not clear what causes these proteins to clump together, but some researchers speculate that cataracts may develop as a result of chemical changes in the lens that occur with aging. Other researchers believe that there may be several causes of cataracts, including smoking, diabetes, and excessive exposure to sunlight.
There are several different types of cataracts:
The following factors may increase an individual's risk for developing cataracts:
People experiencing symptoms associated with cataracts should see an eye care professional. The care provider can make a diagnosis and help determine which treatment or combination of therapies is most appropriate.
Eye care professionals can detect cataracts with the following tests:
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Certain medications may help delay cataract formation (particularly in those with diabetes or other high-risk conditions), but none are known to reverse the progression of cataracts once they form.
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In its early stages, a cataract usually does not interfere with vision. Over time, however, a cataract may grow larger and cloud over more of the lens, making it difficult to see.
When cataracts cause vision loss that interferes with everyday activities, such as driving, reading, or watching television, surgery is the only effective treatment. An eye care professional may also recommend that an individual have a cataract removed if the patient has other eye conditions, if the cataract threatens to cause another eye disorder, or if the presence of the cataract prevents examination or treatment of another eye problem.
During surgery, the cloudy lens is replaced with a substitute lens. Cataract removal is one of the most common operations performed in the United States today. According to the National Eye Institute, roughly 90% of people who have cataract surgery experience improved vision as a result.
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A comprehensive treatment plan for cataracts may include a range of complementary and alternative therapies.
Nutritional tips include the following:
You may address nutritional deficiencies with the following supplements:
Herbs are generally a safe way to strengthen and tone the body's systems. As with any therapy, you should work with your health care provider to get your problem diagnosed before starting any treatment. You may use herbs as dried extracts (capsules, powders, teas), glycerites (glycerine extracts), or tinctures (alcohol extracts). Unless otherwise indicated, you should make teas with 1 tsp. herb per cup of hot water. Steep covered 5 - 10 minutes for leaf or flowers, and 10 - 20 minutes for roots. Drink 2 - 4 cups per day. You may use tinctures alone or in combination as noted.
Although very few studies have examined the effectiveness of specific homeopathic therapies, professional homeopaths may consider certain remedies for the treatment of cataracts based on their knowledge and experience. Before prescribing a remedy, homeopaths take into account a person's constitutional type -- your physical, emotional, and psychological makeup. An experienced homeopath assesses all of these factors when determining the most appropriate treatment for each individual.
Contrast hydrotherapy (alternating hot and cold water applications to the face or back of neck) may improve circulation to the head and facilitate the transport of nutrients to the eye. Hydrotherapy to eyes, head, or neck should be done only under supervision of a knowledgeable doctor.
The National Eye Institute estimates that vision improves in about 90% of people who have cataract surgery. Complications from surgery are rare, but can include infection, bleeding, retinal detachment, inflammation (pain, redness, swelling), loss of vision, or light flashes. With prompt medical attention, such problems can usually be treated successfully.
A health care provider may prescribe eye drops or medications to help healing and control the pressure inside the eye for a few days following surgery. An eye shield or eyeglasses may also be necessary. A health care provider will schedule eye exams as needed to check on progress.
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