Daily wear rigid gas-permeable contact lenses appear to have the lowest risk for corneal infection, followed by daily wear soft contact lenses and seven- or 30-day-wear soft contact lenses. Not everyone can wear the lenses successfully for a full 30-nights, but the risk of infection does not appear to increase with greater number of consecutive nights of wear. This is a different pattern than we previously observed with conventional extended-wear soft lenses, where the risk did go up substantially with additional overnight use.
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