Before revision: In 1828, Detmar Wilhelm Sömmerring observed posterior capsule opacification and then described Soemmering's ring </ref> Julius Hirschberg: History of ophthalmology (1987) <ref> <ref> Weinand F et al: Phakogene Uveitis bei Luxation des Soemmering'schen Nachstarwulstes ... Klin Monatsbl Augenheilkd 2004, 221, 277-279.
After revision: In 1828, Detmar Wilhelm Sömmerring observed posterior capsule opacification and then described Soemmering's ring Julius Hirschberg: History of ophthalmology (1987) Weinand F et al: Phakogene Uveitis bei Luxation des Soemmering'schen Nachstarwulstes ... Klin Monatsbl Augenheilkd 2004, 221, 277-279.