Experimental Studies on the Sterilization of The Soft Contact Lens.
- Author:
San Bae KIM
1
Author Information
1. Department of Ophthalmology, College of Medicine, Seoul National University, Seoul, Korea.
- Publication Type:Original Article
- MeSH:
Benzalkonium Compounds;
Coagulase;
Contact Lenses, Hydrophilic*;
Cornea;
Disinfectants;
Pseudomonas aeruginosa;
Staphylococcus aureus;
Sterilization*;
Thimerosal
- From:Journal of the Korean Ophthalmological Society
1974;15(1):9-15
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
Mycon-soft lenses (made by Tokyo contact lens Co., Japan) were contaminated experimentally with coagulase positive staphylococcus aureus and pseudomonas aeruginosa and sterilizing effects of some disinfectants (3% H2O2, 6% H2O2, 0.1% Benzalkonium and 1:1000 Merthiolate solutions) on those contaminated lenses were studied. The following results were obtained: 1. SCL contaminated with staphylcoccus were sterilized by soaking in 3% H2O2, 6% H2O2, or 1:1000 Merthiolate solution over 15 minutes, and in 0.1 Benzalkonium over 60 minutes. 2. SCL contaminated with pseudomonas aeruginosa were sterilizd by soaking in 6% H2O2 over 15 minutes, in 1:1000 MerthioJate solution over 60 minutes, in 3% H2O2 over 60 minutes, but no sterilization was obtained by soaking in 0.1 % Benzalkonium solution for less than 180 minutes. 3. No signs of irritation were noted on rabbit corneas fitted with SCL after soaking in 3% H2O2 or 6% H2O2 for 15 minutes followed by soaking in 20cc of normal saline for 15 minutes.
