This article was originally posted at http://www.apple-a-day-clinic.com/Health_and_Nutrition_Blog?m8:post=cata...
If left untreated, cataracts can lead to blindness. The only current treatment is surgery to remove the lens, which is commonplace in the United States but unavailable elsewhere.
"Cataracts in humans have been around as long as humans have been around, and this is the first time in history that they're using a nonsurgical approach for their removal," says Andrew Morgenstern, O.D., chair of AOA's New Technology Committee and a consultant with Booz Allen Hamilton whose current assignment is with the Vision Center of Excellence at Walter Reed National Military Medical Center in Bethesda, Maryland.
Crystallins in our eyes work as chaperones to help prevent the clumping of proteins, or aggregation of insoluble amyloids, that cause cataracts, but crystallins can become overwhelmed as we age. Previous research had shown that lanosterol, which belongs to a group of chemical compounds called sterols, reversed cataracts. However, lanosterol was not water-soluble enough to be included in an eye drop solution and had to be injected into the eye.
In this new study, researchers tested 32 additional sterols, focusing on Compound 29, which not only dissolved the amyloids in a lab dish but also prevented the formation of new protein clumps. Researchers then confirmed that Compound 29 reversed hereditary- and age-related cataracts in mice and in human lens tissue removed during cataract surgery.
Not an immediate option
One limitation of the study is that it was a mouse study, says Sue Lowe, O.D., chair of the AOA Health Promotions Committee who practices in Laramie, Wyoming. You can't ask mice about their visual acuity.
"Every individual still interprets what they see differently," she says.
Dr. Lowe explains that a cataract might appear cloudy to the optometrist, yet the patient says he or she can see well. On the other hand, another patient may have a clearer-looking cataract, yet complain about poor eyesight.
An animal model also means the research isn't "going anywhere fast," Dr. Morgenstern says. But it could be a stepping stone for development of future treatments.
The concept of eye drops as cataract treatment isn't new, Dr. Lowe says. A product was developed in Russia using a compound called N-acetylcarnosine in eye drops to treat cataracts. It's available in the United States as a dietary supplement but is not approved by the U.S. Food and Drug Administration. It was patented by the research team in Russia, where most of the studies have been conducted. I have used this with patients with inconsistent benefits. I am currently testing this homeopathic product in pets, and will report on it soon. If you would like to try it it is only $17.64 with FREE shipping!
Drs. Morgenstern and Lowe agree that cataract surgery will likely remain the primary treatment in the United States, but an eye drop that improves cataracts could be a boon to the developing world, even if it doesn't eliminate the cataract altogether.
"Sometimes the best treatment you can get for a patient is an improvement and not necessarily a complete cure," Dr. Morgenstern says. "If you can take an individual with a 20/200 cataract and you can get them to 20/40 best-corrected vision with a simple eye drop, that's pretty amazing stuff." I agree! Friday, if you are on my email list, learn how cold, wind and damp affect your health! Fascinating stuff! Sign Up right here so you don't miss it. Please visit our store for GREAT prices on hundreds of products I have personally used and recommend. We offer 10-20% off all orders over $99 with FREE shipping on each and every order..no minimums. You can also pick up your order! Best of Health!
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