Social responsibilities in ophthalmology.
D001766:Blindness / Q000517:prevention & control / Q000628:therapy; D002386:Cataract / Q000209:etiology; D003906:Developing Countries; D006285:Health Planning; D006292:Health Priorities; D006301:Health Services Needs and Demand; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D009855:Onchocerciasis / Q000635:transmission; D009885:Ophthalmology / Q000266:history* / Q000592:standards; D012941:Social Responsibility; D013397:Sudan; D006113:United Kingdom