Microbial contamination of hydrogel contact lenses
نویسندگان
چکیده
منابع مشابه
Microbial contamination of hydrogel contact lenses.
Bacterial contamination of contact lenses (CLs) may contribute to CL-related corneal infection and inflammation. This study reports CL biota over time during daily and extended wear. Microbial contamination of a 58% water, ionic hydrogel CL and a 38% water, non-ionic hydrogel CL was evaluated in an Australian and an Indian population. Fifty wearers were repeatedly sampled over 18 months. Overni...
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PURPOSE Wearing goggles over contact lenses while swimming is often recommended by eye care professionals. Limited data are available to assess this recommendation. The purpose of this study was to examine whether wearing goggles while swimming limits bacterial colonization on contact lenses and whether the type of lens worn affects contamination rates. METHODS Twenty-three subjects underwent...
متن کاملMicrobial contamination of soft contact lenses & accessories in asymptomatic contact lens users
BACKGROUND & OBJECTIVES With increasing use of soft contact lenses the incidence of contact lens induced infections is also increasing. This study was aimed to assess the knowledge of new and existing contact lens users about the risk of microbial contamination associated with improper use and maintenance of contact lenses, type of microbial flora involved and their potential to cause ophthalmi...
متن کاملLysozyme sorption in hydrogel contact lenses.
PURPOSE To examine the processes involved in formation of protein deposits on hydrogel contact lenses. METHODS The adsorption and/or penetration of lysozyme on or into three types of contact lenses, etafilcon A, vifilcon A, and tefilcon, were investigated in vitro using a radiolabel-tracer technique, x-ray photoelectron spectroscopy, and laser scanning confocal microscopy. RESULTS Binding o...
متن کاملTear flow under hydrogel contact lenses.
The tear replenishment rate under three different hydrogel lenses was determined with a slit lamp modified to serve as a fluorophotometer. Fractional tear volume replenishment rates under these lenses averaged 0.011 per blink, which is significantly lower than the 0.10 to 0.20 per blink reported for rigid lenses. These data suggest that the amount of oxygen delivered to the cornea by tear pumpi...
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ژورنال
عنوان ژورنال: Journal of Applied Microbiology
سال: 1997
ISSN: 1364-5072,1365-2672
DOI: 10.1111/j.1365-2672.1997.tb02876.x