A number of eye conditions can be treated by administering drugs directly into the eye. Yet, conventional needles have a bunch of drawbacks, including the patients’ fear of needles entering such fragile parts of the body and the difficulty of accurately administering medication into a targeted region of the eye. For glaucoma, for example, eye drops are prescribed which have a shorter active lifetime and are often skipped by the patients. An easy injection that works for months at a time would help control the disease considerably better.
Researchers at Georgia Tech and Emory University have been working on microneedles and formulations to safely and effectively deliver drugs into the eye. The microneedles are designed to only penetrate to the correct depth and the formulations need to be viscous enough to stay in place and release their therapeutic compounds in a controlled fashion. The…
