Mohammad-Hossein Ghajar

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Several chemical disinfecting solutions for soft contact lenses were evaluated according to the tests suggested by FDA in the May 1983 revision of the Microbiological Guidelines. It was experimentally determined that cleaning and rinsing lenses remove 3.5 to 3.9 logs of microorganisms. Furthermore, it was determined that only 3% hydrogen peroxide had a(More)
A minimal salts medium adjusted to physiological pH and osmolality was buffered with either 0.3% phosphate or 1.2% borate and evaluated for antimicrobial activity. The borate-buffered medium, either with or without a carbon source, exhibited significant antimicrobial activity against 15 Pseudomonas strains, 12 strains of enteric bacteria, and 7 strains of(More)
This study was designed to assess the microbiological risk associated with using unpreserved saline buffered with either borate or phosphate salts. The results indicate that borate buffer has measurable antimicrobial activity and can control some microbiological contamination. However, phosphate-buffered saline can become easily contaminated and usually(More)
The effect of EDTA (ethylenediaminetetraacetate), steroids, and preservatives on the antimicrobial activity of 10% sodium sulfacetamide solutions was evaluated in this study by kill rate and minimum inhibitory concentration (MIC) using five representative microorganisms. The results indicate that thimerosal-preserved sulfacetamide solutions containing EDTA(More)
The antimicrobial activity of MiraFlow, an extra-strength cleaner containing 20% isopropyl alcohol, was evaluated using various microorganisms including Acanthamoeba. Other leading cleaners, disinfecting solutions and heat were evaluated for comparison. MiraFlow had greater antimicrobial activity than the other cleaning solutions against all five test(More)
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