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#245521 - 05/27/07 08:47 AM Health warning
MagdaGraham Offline
CoS Priestess

Registered: 06/23/04
Posts: 13369
Loc: Scotland
I posted this in the Members’ Section and suddenly realised – non-Members and about-to-be-Members need to be warned as well. It sounds horribly serious.

New York Times

May 27, 2007
Contact Lens Solution Pulled Over Link to Infection
By LAWRENCE K. ALTMAN
A contact lens solution manufacturer voluntarily withdrew one of its products yesterday after federal health officials said an investigation had linked it to a rare but potentially blinding eye infection.

Customers were advised to immediately stop using the solution, AMO Complete Moisture Plus Multi-Purpose Solution. The solution, used to clean and store soft contact lenses, is made by Advanced Medical Optics of Santa Ana, Calif.

Soft contact lens wearers who have the AMO solution were advised to discard all partially used or unopened bottles and switch to alternative products. They should also throw out their current contact lenses and the lens storage case because they may harbor an infection-causing amoeba, officials of the federal Centers for Disease Control and Prevention in Atlanta said.

The agency also advised people who have used the product to call an eye doctor if they have experienced eye pain or redness, blurred vision, sensitivity to light, the feeling of something in the eye or excessive tearing. The symptoms, which resemble those of other eye problems, can last weeks to months and vary among patients.

Advanced Medical Optics said it withdrew the product as a precaution after the epidemiologists at the disease control centers said they had identified 138 laboratory confirmed cases of the infection, Acanthamoeba keratitis, that have occurred throughout the country since January 2005. Keratitis is inflammation of the cornea.

The authorities said that the link was “preliminary” and that it had not determined precisely how the patients became infected. But investigators found that the risk of developing the infection was at least seven times greater for those people who used the AMO product than for those who did not.

The company said, “There is no evidence to suggest that the voluntary recall is related to a product contamination issue and this does not impact any of AMO’s other contact lens care products.”

Acanthamoeba infection usually develops slowly and can be difficult to diagnose and treat. Doctors often attribute Acanthamoeba infections at first to a virus, herpes simplex, that is treatable. But the drugs for herpes do not help Acanthamoeba patients. Doctors advise treating the infection as early as possible.

The amoeba is ubiquitous and often found in tap and recreational water, soil, sewage, cooling towers and heating and ventilation systems. It is not spread person-to-person.

So far, epidemiologists have interviewed 46 of the 138 patients with confirmed cases of the illness. Of the 46, 39 (85 percent) wore soft contact lenses, 3 (7 percent) wore rigid lenses and 4 (9 percent) reported no contact lens use.

Acanthamoeba keratitis usually affects healthy people who wear contact lenses. About 85 percent of the cases reported in this country have occurred in contact lens users, including wearers who say they follow recommended contact lens-care practices, health officials said.

Though the number of cases is small compared with the estimated 30 million soft contact lens users in this country, the infection can lead to a corneal transplant or removal of an eye.
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#246254 - 05/31/07 11:49 AM Re: Health warning [Re: MagdaGraham]
MagdaGraham Offline
CoS Priestess

Registered: 06/23/04
Posts: 13369
Loc: Scotland
Chicago Sun-Times

Man nearly loses sight after using contact lens formula
(http://www.suntimes.com/lifestyles/health/408385,CST-NWS-eye31.article)

May 31, 2007

BY JIM RITTER Science Reporter jritter@suntimes.com
A few months after getting a pair of soft contact lenses, Rocco Ryg began to suffer excruciating pain in his left eye.

The throbbing kept Ryg up at night. His eye was red, and so painfully sensitive to light that he had to wear dark sunglasses.

Ryg needed a cornea transplant to save his eyesight.

Then his right eye went bad. Ryg underwent a second cornea transplant at the University of Illinois at Chicago, where he's a senior.

Ryg had been using a contact lens solution, AMO Complete MoisturePlus, that was pulled from the market Friday.

It was the second time in 14 months that a contact lens solution was yanked after being linked to a rare and potentially blinding eye infection.

Last year, Bausch & Lomb pulled ReNu with MoistureLoc after it was linked to a fungal infection.

The latest problem is an infection called Acanthamoeba keratitis, or AK, caused by a microscopic amoeba. It was first reported by UIC researchers, who noticed a spike in Chicago area cases.

The Centers for Disease Control and Prevention reports 138 confirmed cases among 35 million contact lens users. Of the 46 cases with complete data, 39 involved soft contact lenses. The risk of getting AK was at least seven times higher among people who used AMO Complete MoisturePlus than those who used other solutions.

Contact lens solutions do not kill 100 percent of waterborne germs. Until recently, that hasn't been much of a problem. But now there have been two outbreaks, involving different germs and lens solutions.


Is water the culprit?
This suggests to UIC researchers that maybe the water is at least partly to blame. They note that federal regulations that took effect between 2002 and 2004 reduced the amount of chlorine added to drinking water supplies.
The regulations were intended to reduce chemical contamination. But the regulations also may have increased the amount of microscopic bugs that can cause eye infections, according to UIC researchers Charlotte Joslin and Dr. Elmer Tu.

Complete MoisturePlus is a multipurpose solution used to cleanse, rinse, store and disinfect contact lenses. Ryg used it "because it was the cheapest on the shelf."

If caught early, AK usually can be treated successfully with eye drops. But AK often is misdiagnosed because symptoms are similar to those of more common eye conditions.

Advanced cases often require cornea transplants, and nearly half of these transplants fail, Tu said.

Fortunately, both of Ryg's transplants succeeded, and he can now see 20-20 with glasses. He says he's through with contact lenses.

© Copyright 2007 Sun-Times News Group | Terms of Use and Privacy Policy
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We are the makers of manners. (Shakespeare)

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#246348 - 05/31/07 09:37 PM Re: Health warning [Re: MagdaGraham]
Luigi Offline
CoS Member

Registered: 05/05/04
Posts: 349
Loc: Europe & South America
It's getting difficult to wear contact lenses these days. We have less and less options... ReNu solution, produced by Bausch & Lomb, was recalled last year as well, following reports of eye infections.

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#246389 - 06/01/07 04:51 AM Re: Health warning [Re: MagdaGraham]
MagdaGraham Offline
CoS Priestess

Registered: 06/23/04
Posts: 13369
Loc: Scotland
Daily Record, Scotland
1 June 2007
LENS SOLUTION SCARE
A CONTACT lens solution is being recalled in the UK amid fears it can cause eye infections.

Officials in the US linked Complete Moisture Plus to a painful eye infection that can lead to blindness in rare cases.

Advanced Medical Optics (AMO), who make the solution, are recalling it worldwide as a "precautionary measure".

The company are urging contact lens wearers who suffer eye pain, redness, blurred vision or sensitivity to light to seek expert help immediately.
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