Poland (1962 SG1337) Malaria Eradication.
Rwanda (1970 SG377) 150th Anniversary of the Discovery of Quinine.
Quinine toxicity is also called cinchonism with the following ocular manifestation: blurred vision, dyschromatopsia, photophobia, night blindness, constricted visual fields, retinal vascular spasm, optic atrophy.