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| | BBC NEWS | Health | Lenses 'could cut infection risk' |
 | | In the catchment area of the Royal Eye Hospital, there are 55,000 contact lens wearers, including 30,000 hydrogel lens wearers and 1,700 silicone hydrogel lens wearers. |
 | | Extrapolating out their findings, based on the incidence rate in the population served by the hospital, the researchers estimated rates of 96 cases of severe keratitis per 10,000 wearers a year for hydrogel lenses, compared with almost 20 per 10,000 wearers a year for silicone hydrogel lenses. |
 | | But John Dart, a consultant ophthalmologist at Moorfields Eye Hospital, said he had some concerns about the way the study had applied its findings to the whole contact lens-wearing population in the UK because there were different patterns of lens-wearing in each area. |
| news.bbc.co.uk /1/hi/health/4368061.stm (530 words) |
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