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The notion of blind it is used to refer to the person who cannot use the sense of the view . Someone blind, therefore, is blind : not able to see.

Due to some kind of anomaly, damage or defect in his eyesight, the blind man fails to perceive correctly the world around him through the eyes. Blindness may be partial or total depending on the degree of disability .

It is usually called blind or blind who totally lacks view or he barely manages to perceive the light, but he cannot appeal to the vision to acquire knowledge. On the other hand there are individuals who are partially blind, who have low vision or who are limited visual.

To minimize the impact of disability, the blind have various tools and resources that facilitate their social integration and interactions. He braille , for example, is a writing and reading system based on the use of raised signs, which are perceived by the touch .

The guide dogs , meanwhile, they are assistance animals that are specially trained to assist the blind. These dogs They provide help with travel and are trained to bring what you are requesting to the blind person.

Usually, to walk on public roads, blind people use a walking stick which allows them to detect obstacles. Typically, the cane is white, although there is a code of colors that identify the user's problem: red and white for the blind who are also deaf, green or yellow for those with low vision, etc.

The first point to consider to create a environment in which blind people can cope with comfort is that most of them have a sense of smell and touch in a normal state, so the Government must make sure to create different infrastructures that allow them to move around the city safely , with advantages and benefits comparable to those of the rest of the citizens.

Although many of the people who enjoy a vision considered normal do not know it, there are different plans to help blind people in the cities, among which the issuers of sound installed at traffic lights and variations in the sidewalk tiles. The former have the objective of translating into sound the signals that the traffic lights emit through the lights: in this way, it is possible to know if the cars are moving forward or stopped so that passers-by cross.

With regard to variations in tiles, these are certain sections in each sidewalk where you can see bumps circular or rectangular, arranged so that the blind person can decode a message when passing over them. While thanks to the view it is not necessary to do anything other than look around to know where the pedestrian path is located and thus cross the street in compliance with the rules and without running the risk of being hit by a car, without this sense so useful everything becomes more complicated. That is why these messages printed in relief on the ground itself is so important.

We must point out and highlight that blind people can acquire a very high degree of instruction that allows them to move very freely through the streets, study a university career and get a job, among many other things. This means that we should not consider that they need the help of those who have normal vision at all times, since they can develop an almost complete level of self-sufficiency; A hand when we really believe they need it, on the other hand, is a very valuable gesture that they will surely thank with a smile.

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