Tabriz University of Medical Sciences BioImpacts 2228-5652 5 4 2015 12 28 Hydrogels for ocular drug delivery and tissue engineering 159 164 10.15171/bi.2015.31 EN Marzieh Fathi Jaleh Barar https://orcid.org/0000-0002-0105-919X Ayuob Aghanejad Yadollah Omidi https://orcid.org/0000-0003-0067-2475 EDITORIAL 10.15171/bi.2015.31 2015 12 18 2015 12 22 Hydrogels, as crosslinked polymeric three dimensional networks, possess unique structure and behavior in response to the internal and/or external stimuli. As a result, they offer great prospective applications in drug delivery, cell therapy and human tissue engineering. Here, we highlight the potential of hydrogels in prolonged intraocular drug delivery and ocular surface therapy using stem cells incorporated hydrogels.