Abstract: Contact lenses comprising phosphorylcholine groups release beneficial polyionic or guanidinium-containing agents.

Abstract: Silicone hydrogel contact lenses comprising an ionic component sustain release of beneficial cationic polymers.

Abstract: Antimicrobial ophthalmic devices such as contact lenses, ocular inserts, ocular bandages, and intraocular lenses comprise a hydrogel and an antimicrobially-effective amount of epsilon polylysine non-covalently attached to the hydrogel.

Abstract: Systems and methods are provided for treatment of an eye. The systems generally include controlled, delayed and or sustained release bioerodible implantable elements having multiple layers of different materials and/or different concentrations of materials. The elements generally include an inner layer, or core, including a therapeutic agent, and one or more outer layers made of polymeric materials, for example substantially pure polymeric materials. The core may include a polymeric material combined with an active agent beneficial in treating a condition of an eye. The elements may be structured such that surfaces of the core are exposed to the physiological environment of the eye when initially implanted within the eye, or may be structured such that the core is entirely enclosed within the outer layers when initially implanted within the eye.

Abstract: This invention relates to novel oral sustained-release formulations for delivery of an active agent (e.g., a drug), especially a highly water soluble drug. More particularly, this invention relates to novel formulations comprising a micelle-forming drug having a charge and at least one polymer having an opposite charge. Methods of using the novel formulations are also provided.