title: Hydration of hydrogel contact lenses during hydrogen peroxide disinfection.
abstract: Some hydrogel contact lenses are susceptible to changes in hydration when soaked in hydrogen peroxide solutions of acidic pH. This study uses a hand refractometer to assess the water content of four Hydrocurve Elite hydrogel contact lenses during prolonged hydrogen peroxide disinfection. A 3-week period of soaking in peroxide solution lead to a decrease in contact lens water content from 50% to approximately 30%. Full rehydration of the lenses occurred over a period of 2 days, using one rinse and two changes of the recommended sodium thiosulfate neutralizing solution.
authors.affiliation: Department of Optometry, University of Melbourne, Parkville, Australia.
authors.forename: A S
authors.initials: AS
authors.lastname: Bruce
mesh_terms: D003263:Contact Lenses, Hydrophilic; D003890:Desiccation; D004203:Disinfection; D006861:Hydrogen Peroxide / Q000009:adverse effects*; D009500:Neutralization Tests; D013997:Time Factors
chemical_list: D006861:Hydrogen Peroxide