Yes, it is possible to get eye irritation because of teething. There is an old saying in China: Toothache is not a disease, the pain to life. It is not unusual when you get eye irritation. It may also impact other organs such as heart, kidney and eyes. There are two reasons to explain it. The first one is pain radiation. That is to say teething may lead pain in the nerves surrounded. Second, it is created by the bacterium in the periodontal pockets. This kind of bacterium not only cause periodontitis but also infect other organs. Another Chinese old saying: It is better for the doer to undo what he has done. So if you get eye irritation initiated due to teething, go to see your dentist as soon as you can. By the way, brushing every day is a good way in the prevention of toothache.