Eye related complications following a concussion include blurred vision,double vision and light sensitivity. Fortunately, these resolve with time and disappear in a few days. Meanwhile, the best and effective things to do would be to rest your eyes as much as possible making use of computers and the television as little as possible. Also avoid any physical exertion for a while. To relieve the pain, take Acetaminophen. Avoid Ibuprofen or aspirin since these increase chances of bleeding. If the light is bothersome, use dark glasses in sunlight and around bright lights. The complaints will definitely disappear in a few days and all returns to normal.