 In this prospective clinical study SRT is performed with various pulse durations at 1.7μs and additionally 200ns to evaluate the different clinical effects of both laser regimens, which were already determined to be safe in animal experiments. The macular diseases to be treated are drusen maculopathy and geographic atrophy due to age-related macular degeneration as well as diabetic macular edema and central serous chorioretinopathy. 