by Joel Harrison
17. August 2010 09:17
Debates on contact lens factors connected with corneal infiltrative events (CIE) have been going on for a long time, not much research has been conducted on the subject. Recently, however, researchers from Case Western Reserve University, Cleveland, United States, have conducted a study published in Investigative Ophthalmology & Visual Science, determining which microbiological, clinical, demographic and behavioural factors are associated with this issue.
The study included 205 subjects and was one year long. The subjects were fitted with lotrafilcon A contact lenses for continuous wear. The researchers, led by Loretta Szczotka-Flynn, concluded that corneal staining is quite common among the wearers of silicone hydrogel contact lenses, but is not associated with the development of corneal infiltrative events. The factors that lead to CIEs are smoking and substantial lens bacterial bioburden.
These findings emphasise the significance of the need to take care of one’s contact lenses properly. In addition, taking into consideration that corneal staining has been proven to predict infiltrative events, all users of silicone hydrogel lenses for continuous wear should consult their ophthalmologists regularly.
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