Corneal refractive therapy gas permeable lenses for the correction of XXXX after one night of lens wear.

@entity1 @entity267 @entity2516 @entity3467 @entity2687
PURPOSE: To examine the refractive and keratometric response of @entity2687 ( @entity2687 ) contact lenses for @entity3467 ( @entity2687 ) after a single night of contact lens wear with the goal of reducing @entity3467 by +3.50 D. METHOD: Twenty @entity1 were fitted with a @entity2687 HDS 100 contact lens, in one eye only. The back optic zone radius of the @entity2687 lens was designed to correct 3.50 D of @entity3467 . The eyes were randomly selected. The Nikon Auto Refractor was used to measure @entity2516 . Corneal topography and simulated K readings were measured using the Humphrey Atlas topographer. The lens was subsequently worn overnight, and the lens was assessed the next morning on awakening. RESULTS: @entity2516 changed by 1.50  0.71 D (mean    SD, range 0.50-2.75 D) immediately after lens removal in the experimental eye. Similarly, there was a change in flat K readings of 0.58  0.62 D with a range of -0.25 to +1.87 D. These results were significantly different from the baseline measurements (P<0.0001). CONCLUSIONS: The fitting of @entity2687 HDS for @entity3467 has a significant effect on corneal shape and @entity2516 . There was a moderate yet significant steepening of the @entity267 .
