Abstract: One of the effective methods for dry eye is to reduce the lost of tear with lacrimal plug.  There are two sorts of lacrimal plugs: absorbable and nonabsorbable. Generally, we may try to find the causes of dry eye, and to relieve the dry eye symptoms with artificial tear. However, these methods would not work well for some severe dry eyes. So lacrimal plug will be chosen. We always select absorbable plug at first, and then nonabsorbable one should be apply while no complications happened. It is important to avoid complications such as canaliculitis, epiphora, displacement of plug, etc.. The lacrimal plug with controlledrelease medicine  has a wonderful  prospect.