Norfloxacin ophthalmic solution has been shown to be effective ocular infections and may be used in patients with chronic conjunctivitis or ocular irritation. Norfloxacin in-situ gel was prepared using various concentrations of polymers such as Carbopol-940 (0., 0.2, 0.3 0.4and 0.5% w/v), HPMC- E50LV (1.5 % w/v), HPMC E4M (0....