Comparative disinfectant efficacy of two disinfecting solutions against Pseudomonas aeruginosa.
OBJECTIVE
We compared the disinfecting efficacy of Pure Eyes Disinfectant and Opti-Free Rinsing, Disinfecting and Storage Solution, without recommended daily cleaning steps, against Pseudomonas aeruginosa.


METHODS
Vifilcon A soft contact lenses were inoculated with the challenge organism, P. aeruginosa ATCC 15442, at a concentration of 1 x 10(8) colony forming units (CFU/mL) and disinfected with each solution for four and six hours, respectively.


RESULTS
Pure Eyes eradicated P. aeruginosa after both four and six hour soak times. With all lots of Opti-Free, colony forming units were too numerous to count (> 200) for both soak times.


CONCLUSIONS
We concluded that, because Pure Eyes disinfecting solutions can eradicate P. aeruginosa without the benefit of a daily cleaning step, this disinfecting process may offer protective benefits to noncompliant contact lens wearers.
Key
J E
JE
Department of Ophthalmology, Baylor College of Medicine, Houston, TX, USA.
Monnat
K
K
D003114:Colony-Forming Units Assay; D018639:Contact Lens Solutions / Q000494:pharmacology*; D003261:Contact Lenses; D004866:Equipment Contamination; D008826:Microbial Sensitivity Tests; D011550:Pseudomonas aeruginosa / Q000187:drug effects*; D013997:Time Factors
D018639:Contact Lens Solutions