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Research Journal of Pharmacy and Technology
Year : 2016, Volume : 9, Issue : 7
First page : ( 995) Last page : ( 1006)
Print ISSN : 0974-3618. Online ISSN : 0974-360X.
Article DOI : 10.5958/0974-360X.2016.00189.X

Recent Advances in Ocular Drug Delivery Systems

Nayak Smita*, Jadhav Madhuri, Bhaskar Vaidhun

Department of Pharmacy, Gahlot Institute of Pharmacy, University of Mumbai, Sector 14, Koparkhairane, Navi Mumbai-400709, Maharashtra, India

*Corresponding Author E-mail: smitanayak125@yahoo.com

Online published on 15 October, 2016.


Transport of drugs applied by traditional dosage forms is restricted to the exterior of the eye, and therapeutic drug concentrations in the target tissues are not maintained for a long duration since the eyes are protected by a unique anatomy and physiology. For the treatment of the anterior segment of the eye, various droppable products to prolong the retention time on the ocular surface have been introduced in the market. On the other hand, direct intravitreal implants, using biodegradable or non-biodegradable polymer technology, have been widely investigated for the treatment of chronic vitreoretinal diseases. There is urgent need to develop ocular drug delivery systems which provide controlled release for the treatment of chronic diseases, and increase patient's and doctor's convenience to reduce the dosing frequency and complication arising out of invasive treatment.

Current review intends to summarize nanotechnology based formulation developments. Also, recent developments with other ocular drug delivery strategies employing in situ gels, implants, contact lens and microneedles have been discussed.



Ocular barriers, intravitreal implant, microneedles, nanosuspension, iontophresis.


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