Comparing Diabetic Macular Edema Treatments February 19, 2015Results of the DRCR.net Protocol T Study In the first clinical trial directly comparing three drugs most commonly used to treat diabetic macular edema, researchers found all were effective in improving vision and preventing vision loss. However, one drug, aflibercept, provided greater improvement for people with more severe vision loss when treatment was initiated. The trial was conducted by the... Read more about Comparing Diabetic Macular Edema Treatments