Various therapeutic agents (such as proteins and polynucleotides) have been used to treat an ocular condition. A difficulty with administration of a therapeutic agent to treat an ocular condition includes being able to appropriately deliver the therapeutic agent in proximity to the desired target tissue. For the treatment of a retinal condition such as macular edema or macular degeneration the target tissue can be the retina or the macula. For the treatment of glaucoma the target tissue can be the ciliary body or photoreceptors of the retina. When a therapeutic agent is not delivered in proximity to the target tissue, for example when a topical pharmaceutical (i.e. an eye drop) is administered to the cornea of eye in order to treat a target tissue within the anterior chamber or the posterior chamber, the therapeutic agent can arrive at the target site in a sub-therapeutic amount and with undesirable side effects upon other tissues. Side effects can include undesirable systemic effects which can result when a relatively large amount of the therapeutic agent is administered, so that a therapeutic amount of the therapeutic agent can be present after administration at the target tissue site. Ocular side effects, such as cataract formation and elevated intraocular pressure, can also result when the therapeutic agent is not administered at a location proximate to the target tissue site