<unk>  is an annular swelling of the periphery of the lens capsule. In 1928, Detmar Wilhelm Sömmerring observed posterior capsule opacification and then described<unk> 's ring as deposits of retained equatorial lens epithelial cells which continue to proliferate and form new cortical fibers which eventually form a ring of cortical fibers between the posterior capsule and the edges of the anterior capsule remnant.
Soemmering ring
Vossius ring
Brock string
Retrocuspid papilla
Pili bifurcati
Magic string 
Pili pseudoannulati
Gräfenberg's ring