Soft Hydrogel Lens Parameter Changes With The New Lensept Disinfection System.

Several hydrogen peroxide systems are currently on the market and available for soft hydrogel lens disinfection. A relatively new system is being marketed by Ciba Vision Corporation named Lensept. This is rather confusing since this two step system now employs a catalase neutralizer instead of a catalytic disc. This system was formally call
In A Wink and has been marketed in Canada. It is a two step system which uses 3% hydrogen peroxide in a disinfection cycle and a catalase solution for neutralization. This second step is relatively rapid and is complete in 5 minutes. In clinical trials several patients in the past have reported slight lens distortion when the lenses were removed from the neutralizing solution. This distortion consisted of edge curling and c fluting with the lens not conforming to a round shape. This may be a cause for irritation that has been reported by some patients upon insertion of the lenses. This study monitored changes in lens diameter, central back surface base curve, and overall back surface base curve over time during the Lensept disinfection cycle. These measurements were taken using Lensept peroxide and AOsept peroxide in combination with the new ensept neutralizing solution. The disinfection cycle, consisting of a hydrogen peroxide soak followed by Lensept Neutralizer, was run with two different hydrogen peroxide soak periods. The two soak periods of 20 minutes and overnight represent two possible ways the system may be used by patients.