Pathophysiology of Macular Edema in General - Results from basic research -- Pathophysiology of Macular Edema in Diabetes, Retinal Vein Occlusion and Uveitis -- Imaging before, during and after steroid therapy -- Devices for the delivery of steroids to the eye -- Treatment of Diabetic Macular Edema with steroids -- Treatment of Macular Edema due to Retinal Vein Occlusion with steroids -- Treatment of Uveitis with steroids -- Steroids as a surgical adjunct -- Steroids in a combination strategy.