Abstract
The field of ophthalmic drug delivery has witnessed significant advancements through the integration of nanotechnology. Despite having numerous conventional dosage forms employed in the ocular drug delivery system the problem of less bioavailability and less retention time is a significant concern. Along with it there are various barriers also involved that affects the drug permeability, solubility due to the lower residence time of the drug on ocular surface. To overcome these problems the nanotechnology approach can be most suitable. All nanocarriers have emerged as a promising career for precise drug targeting to ocular tissues. Their small size, biocompatibility and surface modification enable improved drug solubility, sustained release and enhanced bioavailability. Moreover nanotechnology facilitates the incorporation of therapeutic agents for various ocular conditions, including glaucoma, macular degeneration and infections. These advancements aim to overcome the challenges and barriers in ocular drug delivery system. This review underscores the immense potential of nanotechnology to revolutionize ophthalmic drug delivery, offering the prospect of more efficient and patient-friendly treatments for ophthalmic disorders.
 Keywords: Ocular drug delivery, Nanotechnology, Nanocarriers, Intraocular pressure, Ophthalmic barriers
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