RESPIRATORY OPHTHALMOMETRY*

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Abstract

Use of a physiological criterion for quantifying the fit of a contact optic over the cornea is described for the first time. By measuring the oxygen flux across the tearepithelial interface following standard contact periods with surfaces of known curvature, the “K” curvature of spherical and toric corneas can be identified. The technique can also be adapted to measure the effectiveness of tear exchange of individual cornealens systems.

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