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					 			      	Blindness - Encyclopedia
					 			      	 
 Blindness and severe visual impairment occur everywhere in the world and at all social levels. They are least prevalent in the economically advanced nations and most prevalent in the emerging nations. http://www.encyclopedia.com/topic/blindness.aspx
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					 			      	Vision Impairment and Blindness - MedlinePlus
					 			      	 
 The sooner vision loss or eye disease is found and treated, the greater your chances of keeping your remaining vision. You should have regular comprehensive eye exams by an eye care professional. https://medlineplus.gov/visionimpairmentandblindness.html
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					 			      	Blindness - MedicineNet
					 			      	 
 Blindness is strictly defined as the state of being totally sightless in both eyes. A completely blind individual is unable to see at all. http://www.medicinenet.com/blindness/article.htm
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					 			      	Learning About Blindness - American Foundation for the Blind
					 			      	 
 Visually Impaired:   A person is considered visually impaired when, with best correction, he or she has difficulty reading a newspaper, is unable to see objects with peripheral vision, among many other indicators. http://www.afb.org/info/living-with-vision-loss/for-job-seekers/for-employers/visual-impairment-and-your-current-workforce/learning-about-blindness/12345
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					 			      	WHO: 10 Facts About Blindness and Visual Impairment
					 			      	 
 WHO fact file about blindness and visual impairment, 10 facts highlighting figures and cost-effective interventions. http://www.who.int/features/factfiles/blindness/en/
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					 			      	Advances in Treating Blindness - WebMD
					 			      	 
 Through an innovative new series, WebMD and Good Morning America co-anchor Robin Roberts help us understand some potential breakthroughs in health that may deliver hope for the future. http://www.webmd.com/news/breaking-news/future-of-health/
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					 			      	Facts About Diabetic Eye Disease - National Eye Institute
					 			      	 
 National Eye Institute, NIH, is dedicated to vision research that saves sight & reduces visual impairment & blindness. https://nei.nih.gov/health/diabetic/retinopathy
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					 			      	Leading Causes of Blindness - NIH
					 			      	 
 NIH MedlinePlus the Magazine, Leading Causes of Blindness. https://www.nlm.nih.gov/medlineplus/magazine/issues/summer08/articles/summer08pg14-15.html
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					 			      	Sudden Blindness, Sudden Vision Loss: Symptoms, Causes, Treatments
					 			      	 
 Sudden blindness is a serious medical emergency. Learn about symptoms & causes of sudden vision loss, as well as possible treatments. http://www.eyeinstitute.co.nz/the-eye/eye-problems-and-symptoms/sudden-blindness.htm
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					 			      	What Causes Blindness? - Vision Center
					 			      	 
 Most people who go blind do so because of one of four common eye diseases. Here are some different blindness causes, as well as the available treatments. http://www.everydayhealth.com/vision-center/what-causes-blindness.aspx
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					 			      	Blindness - Symptom Checker
					 			      	 
 Discover 24 possible causes for blindness including Loss of Vision in one Half of the Visual field, Head Injury and Glaucoma. http://www.healthline.com/symptom/blindness
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					 			      	Blindness - Kids Health
					 			      	 
 Kids who can't see, or can't see well, learn to live without using their eyes. To learn more about visual impairment and what causes it, read our article for kids. http://kidshealth.org/en/kids/visual-impaired.html
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					 			      	Curing Blindness: Vision Quest - Nature News and Comment
					 			      	 
 Technologies are allowing doctors to do what was once unheard of: restore blind people's sight. Now the real challenges begin. http://www.nature.com/news/curing-blindness-vision-quest-1.15875
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					 			      	Visual Impairment - Wikipedia, the Free Encyclopedia
					 			      	 
 Visual impairment, also known as vision impairment or vision loss, is a decreased ability to see to a degree that causes problems not fixable by usual means, such as glasses. https://en.wikipedia.org/wiki/Visual_impairment
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					 			      	Blindness and Vision Loss - MedlinePlus Medical Encyclopedia
					 			      	 
 Blindness is a lack of vision. It may also refer to a loss of vision that cannot be corrected with glasses or contact lenses. https://www.nlm.nih.gov/medlineplus/ency/article/003040.htm