Panretinal photocoagulation (PRP) is a laser therapy used to treat a wide range of conditions, including diabetic retinopathy, retinal vein occlusion, and retinal artery occlusion. Photocoagulation uses a high-energy laser to close off leaking blood vessels, which helps to reduce or prevent abnormal bleeding in the retina. The procedure is often performed in-office using topical anesthesia eye drops and generally takes less than 15 minutes to complete. However, multiple sessions may be necessary depending on the severity of the bleeding. Mild discomfort post-procedure is normal but should resolve within a day or so.