[Ofloxacin content in tears following topical use of 0.3% ointment]

Tear and aqueous humor levels of ofloxacin following 40mg of topical 0.3% ointment were determined at intervals within 24 hours by high performance liquid chromatography. The highest tear level was detected in half an hour, and effective concentrations existed in 6 hours. The highest aqueous humor level was detected 60 minutes after administration. Ofloxacin ointment produced higher tear concentrations for longer time than did aqueous solution of the drug.