1. T. I. A. for the Prevention of Blindness (IAPB), Vision 2020. https://www.iapb.org/global-initiatives/vision-2020
2. Ting DSW, Cheung GCM, Wong TY (2016) Diabetic retinopathy: global prevalence, major risk factors, screening practices and public health challenges: a review. Clin Exp Ophthalmol 44(4):260–277
3. W. H. Organization, World report on vision. https://www.who.int/publicationsdetail/worldreportonvision
4. W. H. Organization, Universal eye health: a global action plan 2014-2019. https://www.who.int/blindness/actionplan/en
5. Li-xin, X. Some suggestions on prevention and treatment of blindness in china. Chin J Ophthalmol Med