The photocoagulation technique used to treat CSME, known as focal macular laser, differs from that used to treat proliferative retinopathy. Focal macular laser uses a limited distribution of laser spots, delicately placed within the bed of retinal edema, and may include the direct treatment of associated leaking microaneurysms using yellow wavelength. As the edema is gradually resorbed, visual acuity may stabilize or even improve.