1. Global initiative for the prevention of blindness: Vision 2020 - the right to sight
2. Ritch R. Exfoliation syndrome: `s and occurrence in patients with occludable angles. Trans Am Ophthalmol Soc. 1994;92:845-944.
3. Lindberg JG. Clinical studies of depigmentation of the pupillary margin and transillumination of the iris in cases of senile cataract and also in normal eyes in the aged [Thesis]. Helsinki, Finland: Helsinki University; 1917.
4. Cataract extraction complicated by capsular glaucoma.
5. Fronimopoulus J, Lambrou N, Pelekis N, Christakis C. Elliot's trepanation with scleral cover (procedure for protecting the fistula in Elliot's trepanation with lamellar sclera cover). Klin Monbl Aungenheilkd. 1970;156(1):1-8.