Ocular Inserts – A Potential Ocular Controlled Drug Delivery Systems

Abstract

Ophthalmic drug delivery is one of the most exciting and difficult areas of research for pharmaceutical scientists. The eye's anatomy, physiology, and biochemistry render it impenetrable to outside chemicals. The capacity to maintain a therapeutic level of the drug at the site of action for an extended period of time is a significant hurdle in ocular therapy. The ocular insert represents a substantial development in the treatment of eye illness by extending the duration of the therapeutic level of the medicine at the site of action. They are constructed of a polymeric matrix that may or may not contain a pharmaceutical agent. The medicine can then be introduced into the polymeric support as a dispersion or solution. They have a number of advantages, including increased ocular residence and prolonged pharmaceutical release into the eye. The insert is composed of a body component that is tailored to fit within the eyelid's lachrymal canaliculus. The inserts are classed as insoluble, soluble, or bioerodible based on their solubility. The drug is released from the insert by diffusion, osmosis, and bioerosion. This review aimed to provide a brief overview of Ocular Inserts – A Potential Ocular Controlled Drug Delivery Systems.