Bimatoprost Ring (IMAGE) American Academy of Ophthalmology Caption This timed-release drug delivery technology is a silicone ring loaded with the glaucoma drug bimatoprost. The ring was shown to lower eye pressure in glaucoma patients by about 20 percent over six months. Results were published May 5, 2016 in Ophthalmology, journal of the American Academy of Ophthalmology. Credit ForSight VISION5 Usage Restrictions Editorial use only License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.