Ophthalmic optics. Contact lenses and contact lens care products. Determination of preservative uptake and release
Ophthalmic optics. Contact lenses and contact lens care products. Determination of preservative uptake and release
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Ophthalmic optics. Contact lenses and contact lens care products. Determination of preservative uptake and release

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1   Scope

This document provides general procedures for the selection of methods, preparation of samples, and the conduct of testing for the uptake and release of preservatives from contact lenses.

NOTE 1 Due to the manifest difficulties of reproducibility when coating contact lenses with mineral and organic deposits encountered during lens wear, these methods are only applicable to new and unused contact lenses.

NOTE 2 Preservative depletion by a contact lens in the limited volume of a lens case could compromise disinfection performance. This document does not measure disinfection performance.