Soft contact lens users beware of the AMO Complete Moisture Plus Multi-Purpose Solution. For an ongoing government investigation in the US has found that it could lead to an increased risk of Acanthamoeba keratitis, a rare yet severe eye infection.
The disease can cause permanent vision loss or blindness. The Centres for Disease Control and Prevention (CDC) estimated 85 percent of U.S. cases of the disease occur in contact lens users. The solution of concern is manufactured by the Advanced Medical Optics Inc. based out of Santa Ana, California.
The possible connection between the use of AMO Complete Moisture Plus Multi-Purpose Solution and Acanthamoeba kertitis was first suspected in 2004 by a University of Illinois-Chicago ophthalmologist, Dr. Elmer Tu, who noticed more than a dozen cases of the eye infection. Normally, Dr. Tu sees no more than two cases in a year.
UIC doctors had treated 35 patients with Acanthamoeba kertitis between May 2003 and September 2006. Yu has been quoted as saying that about 55 percent of the cases used AMO products exclusively.
The UIC investigators believe amoeba, which is the infection agent, does not get into the solution during the manufacturing process, but that the solution does not prevent the eye infection. People can get the infection when they wear contact lens and swim.
The CDC in collaboration with the U.S. Food and Drug Administration is investigating 138 cases after they received reports on a possible link between the AMO contact lens solution and Acanthamoeba kertitis.