thesis- To understand how different life is without sight one must first understand the causes, daily life, and possible cures for those who are blind.

intro- imagining a world in darkness. taking for granted sight. prejudice
1st-causes. "in the u.s leading causes...". "Vitamin A...". "Sexually transmitted...". "a clot in the blood..."."Retinal Detachment". "The high rate of blindness...".
2nd- day to day. "In 1835...". "The Braille system has been modified...". "The companion animal...". "One is a computer...".
3rd- cures. "There is an intense..". "Attempts have been...". "Vission is transferred".