Eye drops, once opened and used, risk being contaminated with the normal bacteria that live on your eyelids. Most bottles of eye drops contain preservatives which limit bacterial growth but not entirely. The older the bottle, the greater the chance that it has been contaminated, and the longer time the bacteria has to grow. A good rule of thumb is to throw away any opened bottle of eye drops after 3 months. Never share eye dropsâeye infections can be spread this way. Never use someone else's prescription eye drops. Some people mistakenly think that all eye drops are alike, and they are notâsome treat dry eye, some treat bacterial or viral infections, and some treat inflammation or glaucoma or fluid in the eye.
Freebase(0.00 / 0 votes)Rate this definition: Mockingbird. Mockingbirds are a group of New World passerine birds from the Mimidae family. They are best known for the habit of some species mimicking the songs of other birds and the sounds of insects and amphibians, often loudly and in rapid succession. There are about 17 species in three genera.
The mockingbird's breeding range is from Maritime provinces of Canada westwards to British Columbia, practically the entire Continental United States south of the northern Plains states and Pacific northwest, and the majority of Mexico to eastern Oaxaca and Veracruz.he northern mockingbird is known for its intelligence and has also been noted in North American culture. A 2009 study showed that the bird was able to recognize individual humans, particularly noting those who had previously been intruders or threats.