Blindness

MedlinePlus: Blindness - Learn what it is, leading causes in the United States and around the world, and when to see a doctor.
http://www.nlm.nih.gov/medlineplus/ency/article/003040.htm

Questions Kids Ask About Blindness - Answers how blind people shop, know when to cross the street, and identify their clothes.
http://www.nfb.org/nfb/NOPBC_Questions_Kids_Ask.asp?SnID=53512754

TeensHealth: Visual Impairment - Learn how the eyes work, common vision problems, causes, and treatments.
http://www.kidshealth.org/teen/diseases_conditions/sight/visual_impairment.html

KidsHealth: Blindness - Read about how vision works, what causes problems, what doctors do, and how learning changes.
http://www.kidshealth.org/kid/health_problems/sight/visual_impaired.html

Blindness for Kids - A legally blind retired schoolteacher explains what blindness is and how it affects people. Includes a section of famous blind people.
http://www.mcwdn.org/Blind/BlindKidsMain.html

Braille Bug - Learn all about Braille, its creator, and Helen Keller. Includes games, activities and codes.
http://www.afb.org/braillebug/