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Abstract
The condition of the corneal epithelium of 57 non-, 18 soft-, 29 gas-permeable-and 26 hard contact lens-wearing eyes was investigated by fluorophotometric determination of the corneal epithelial permeability.
The mean permeability values for non-, soft-, gas-permeable-and hard contact lens-wearing eyes were 0.040 nm/s + 0.017 SD, 0.02U nm/s + 0.009 SD, 0.028 nm/s + 0.017 SD and 0.044 nm/s + 0.020 SD, respectively. The mean permeability values for soft and gas-permeable contact lens-wearing eyes were significantly lower than that for non contact lens-wearing eyes (-40%, p < 0.0001 and-30%, p < 0.005); no significant difference was found between the mean values for hard and non contact lens-wearing eyes (p=0.38).