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Abstract
The retention of the antibiotic chloramphenicol on, and penetration into, the rabbit eye has been compared following administration in two vehicles. Samples were taken of both aqueous humor and a washing fluid applied to the conjunctival surface and the concentration of 14C-chloramphenicol determined. Greater tear film and aqueous humor drug concentrations, which are effective against many organisms, were found with a vehicle which enhanced retention time on the ocular surfaces.