Role of Micro Emulsion Based In-Situ Gelling System of Fluoroquinolone for Treatment of Posterior Segment Eye Diseases (PSED)
The in situ drug delivery system and colloidal formulation like micro emulsion has potential to use in ocular delivery. Micro emulsion provides better permeation of drug through the membrane and provides improved bioavailability. The in situ drug delivery system decreases pre-corneal drainage, increase the contact time of formulation with eye and prolong the release in ocular tissues. Again, in situ gelling system has advantage of delivering accurate and reproducible quantities each time, against any already gelled formulations. To combine the benefits of these two dosage forms, micro emulsion based in situ gelling system can be developed as a novel vehicle for ophthalmic drug delivery. Endophthalmitis is an infection of intraocular fluids like vitreous humor and ocular tissues. To combat the disease, the formulation which provides sufficient concentration in posterior segment eye diseases (PSED) is required.
Keywords: Posterior segment eye diseases, micro emulsion, drug delivery system, ocular, formulation.
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