Close Monitoring Is Key (IMAGE) NIH/National Eye Institute Caption Patients in the trial were closely monitored for changes in vision, said Carl W. Baker, M.D. (left). During the 2-year study, the detection of 2 lines of visual acuity loss at one visit or 1 line of visual acuity loss at two consecutive visits prompted aflibercept injections to be given to the people in the laser or observation groups. Credit Brooksie Beard Usage Restrictions None 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.