Two products, Fluress and Flurocaine, were compared for comfort upon instillation of the drops, brightness of the rings, and the width of the rings. One drop of one product was put in one eye and one drop of the other product was put in the other eye. The subjects were then asked to compare the comfort of one product to the comfort of the other. The experimenter measured intraocular pressures using the Goldmann aplanation tonometer and evaluated the brightness and width of the rings. The results indicate Fluress is significantly more comfortable and produces brighter rings but there is no significant difference in the width of the rings.
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