|visually challenged people keep walking at Saidapet Railway Station, Chennai|
In Chennai a survey was conducted. The suburban railway network of Chennai happens to be the choice of the visually challenged people. On this network, Researcher noticed that: 119 visually challenged had been reducing to begging, with no other means to meet their bare ends. Shockingly, 82 of these 119 people were educated. The visually challenged also took to selling various household utility items and lottery tickets. They, in turn, faced several hurdles in the process. (Nethrodaya - A Self-Help Organization for the Visually Impaired http://www.nethrodaya.org/genesis.html)
285 million people are visually impaired worldwide: 39 million are blind and 246 have low vision. About 90% of the world's visually impaired live in developing countries. Visually impaired and blind people have devised a number of techniques that allow them to complete daily activities using their remaining senses.