The process whose specific outcome is the progression of the lens over time, from its formation to the mature structure. The lens is a transparent structure in the eye through which light is focused onto the retina. An example of this process is found in Mus musculus. [ GOC:dph https://www.worldcat.org/search?q=bn%3A0582064333 ]

Synonyms: lens development lens development in camera-style eye

This is just here as a test because I lose it