Transitional Lenses Change Shades "On Command"

"The idea of transitional lenses - that can be clear or shaded depending on the intensity of surrounding light - is a useful one, but many users find they do not suit their needs," according to Medical News Today. "Now, scientists are working on a lens material that can change from clear to shaded and back again in seconds - when the user commands it. The new eyeglass material is being developed by a team led by John Reynolds, professor of chemistry and biochemistry, materials science and engineering at the Georgia Institute of Technology in Atlanta. The team is working on the new material in collaboration with the German technology company BASF." Read more.

Microneedles Help Treat Eye Disease

Thanks to tiny microneedles, eye doctors may soon have a better way to treat diseases such as macular degeneration that affect tissues in the back of the eye. That could be important as the population ages and develops more eye-related illnesses – and as pharmaceutical companies develop new drugs that otherwise could only be administered by injecting into the eye with a hypodermic needle, according to a Georgia Institute of Technology press release.

For the first time, researchers from the Georgia Institute of Technology and Emory University have demonstrated that microneedles less than a millimeter in length can deliver drug molecules and particles to the eye in an animal model. The injection targeted the suprachoroidal space of the eye, which provides a natural passageway for drug injected across the white part (sclera) of the eye to flow along the eye’s inner surface and subsequently into the back of the eye. The minimally-invasive technique could represent a significant improvement over conventional methods that inject drugs into the center of the eye – or use eyedrops, which have limited effectiveness in treating many diseases. Read more.

Clearside Developing Microinjector for Delivering Drugs

Microinjector

You may have heard that Microsoft and the University of Washington developed a contact lens for the delivery of medical care. There's another company working on a delivery system without contact lenses, as reported in Today's Medical Developments. "Technology developed by researchers at the Georgia Institute of Technology and Emory University for delivering drugs and other therapeutics to specific locations in the eye provides the foundation for a startup company that has received a $4 million venture capital investment.
The Atlanta-based startup, Clearside Biomedical, plans to develop microinjection technology that will use hollow microneedles to precisely target therapeutics within the eye. If the technique proves successful in clinical trials and wins regulatory approval, it could provide an improved method for treating diseases that affect the back of the eye, including age-related macular degeneration. " Read more.