Process for cleaning and disinfecting contact lenses

Details Process for cleaning and disinfecting contact lenses Process for cleaning and disinfecting contact lenses

1993-08-27

1994-12-06

Dean, Richard O.

Cleaning and liquid contact with solids

Processes

Miscellaneous

134 26, B08B 300, B08B 700

Patent

active

053707443

ABSTRACT:
An improved process for cleaning and disinfecting contact lenses with a single solution is described. The process utilizes the cleaning effect of a cleaning agent in combination with the solvent action of water and physical agitation of the lens (i.e., by means of rubbing) to achieve a degree of cleaning which is comparable to or better than prior processes which utilize surfactant-cleaners. The cleaning agent is selected from polycarboxylates, polysulfonates and polyphosphates. The preferred cleaning agent is citrate. The process also offers greater convenience, relative to many prior systems for cleaning and disinfecting contact lenses, since the need to utilize additional products to clean the lenses is eliminated.

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Houlsby, R., "Microbiological Evaluation of Soft Contact Lens Disinfecting Solutions," Journal of the American Optometric Association, vol. 55, No. 3, pp. 205-211 (1984).
Janoff, L., "Origin and Development of Hydrogen Peroxide Disinfection Systems," The CLAO Journal, vol. 16, No. 1, (supplement), pp. S36-S42 (1990).
Mandt, et al., "Quantitative Bioburden Determination of Patient Worn Soft Contact Lenses," Abstracts of the Annual Meeting of the American Society for Microbiology, Abstract L36, p. 384 (1985).
Minarik, L., et al., "Protein Deposits on Individual Hydrophilic Contact Lenses: Effects of Water and Ionicity," The CLAO Journal, vol. 15, No. 3, pp. 185-188 (1989).
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