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  • Title: Patient response to Polycon II and Silcon contact lenses. A comparative study.
    Author: Harris MG, Gatschet M, Harder M, Simmons C.
    Journal: Am J Optom Physiol Opt; 1983 May; 60(5):405-7. PubMed ID: 6881268.
    Abstract:
    Ten myopic patients with no previous contact lens experience were fitted with similarly designed Silcon and Polycon II contact lenses so that we could evaluate and compare the patients' responses to these lens types in a double masked fashion. None of the patients had any contraindications to contact lens wear. The Silcon lens is a cross-linked silicone resin lens with a reported DK value of 16 X 10(-11). The Polycon II lenses is a combination PMMA-Silicone lens with a reported DK value of 12 X 10(-11). After a thorough contact lens pre-fitting evaluation, each patient was fitted in a random fashion with a Silcon lens on one eye and a Polycon II lens on the other. Patient response was evaluated by the standard of success of Sarver and Harris. No statistically significant differences were found in the patients responses to the two lens types. Nine of the patients were successful with the Silcon lenses while all 10 patients were successful with the Polycon II lenses.
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