You should look at the Normal Retina photo first for comparison.This photo shows some abnormal blood vessels growing on the optic disk (very fine vessels) and out of the retina in the center of the photo (these are coarser). These have a tendency to bleed. Laser treatment is intended to make them regress and to reduce their chance of bleeding. Fresh laser burns are the grayish spots in the top right part of the photo. Older laser spots from a previous treatment session months before appear as the black spots closer to the optic disk. Laser spots become pigmented over time as they heal. Regressed abnormal vessels are shown - they are the white fronds above the center of the photo.