Prior to Clear Care, the market only provided a two step system where you first soaked the lenses in peroxide for a short period of time or overnight then replaced it with a neutralizing saline. Clear Care contains a poloxamine derivative surfactant that helps loosen debris and deposits via a bubbling action and has a platinum disk that neutralizes the solution and is good for up to 100 uses. Clear Care, the current evolution of the old AOsept system, is said to count for more than 80 percent of the hydrogen peroxide systems sold in the US. The original brands were Softmate, Mirasept, Lensept, Oxysept I/II, IN a wink, and AOSept. Three main name brands are available along with several generic products. Procedural mistakes put eyes at risk from contacting the hydrogen peroxide. Hydrogen peroxide solutions require a separate solution in order to rinse the contacts. The main attraction of multipurpose solutions is that the same solution can clean, rinse, disinfect and store lenses. Contacts do not have to be placed in multipurpose solutions for extended intervals, whereas contacts must be left in a hydrogen peroxide solution for hours. Multipurpose solutions tend to be less expensive. Some researchers have found the peroxide cleaning regimen to encourage better contact lens care practices among peroxide users compared to multipurpose solution users. Hydrogen peroxide solutions have a greater ability to fight acanthamoeba keratitis, a rare infection that can cause blindness. This can be beneficial for people who are allergic or sensitive to the preservatives in multipurpose solutions. Hydrogen peroxide solutions do not contain preservatives. Hydrogen peroxide has the ability to penetrate microbial films, which helps create a deeper clean. Significant differences exist between the two. Hydrogen peroxide versus multipurpose solutions īoth hydrogen peroxide and multipurpose solutions remove debris and build-up. After extended use, the platinum coated disk must be replaced. At this point, it is safe to use the contact lenses. After 6-8 hours, the hydrogen peroxide becomes an eye-safe saline solution. This “redox” reaction (reduction and oxidation) produces small bubbles that help to clean the contacts. The contacts are placed into a special container with a platinum-coated disk, which reacts with the hydrogen peroxide. In order to prevent eye damage, the solution must undergo a chemical reaction before the contacts are placed into the individual's eyes. Burned cells heal very quickly once the natural tear film is restored. While this would not result in permanent damage, it can cause an intense burn that can linger even after an eye rinse. The intention is to prevent the hydrogen peroxide from contact with the eye, which could damage the corneal cells in the epithelium. Hydrogen peroxide is always used alongside a neutralizing product. This enables the solution to break down any proteins that coat the contacts after a long period of use. The majority of hydrogen peroxide solutions are 3% hydrogen peroxide. 2 Hydrogen peroxide versus multipurpose solutions.
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