The eye presents unique opportunities and challenges when it comes to the delivery of pharmaceutical dosage forms. The existing ocular drug delivery is fairly primitive and inefficient; however the design of ocular system is undergoing gradual transition from empirical to rational basis.To improve ocular drug bioavailability, there are significantefforts directed towards newer drug delivery systems for ophthalmic administration.Newer research in ophthalmic drug delivery systems is directed towards prolonging the contact time of the vehicle at the ocular surface, but which at the same time slow down the elimination of the drug. The conventional forms offer lot of drawbacks hence the novel drug delivery like ocular inserts was prepared which proved to be a boon to the developing drug ophthalmic drug delivery.
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