It is believed that about 80% of information a person receives through his vision. However, this figure is highly dependent on how well we see. There are very few people with excellent vision. Many begin to lose it at school. Photo: Depositphotos This is connected not only with small prints in textbooks, but also with the spread of computer literacy, when you have to strain your eyesight due to a poorly configured monitor. As a person grows up, vision gradually “sits down.” I have to buy glasses. But they do not always fully restore normal vision.
There are more and more visually impaired people in the world. Vision problems make life difficult for them. Let us dwell in detail on how scientists and specialists help these people to feel useful in society. It will be about various electronic devices that have appeared in recent years. It is extremely difficult for visually impaired people to use mobile phones. They are now of two types – push-button and touch. In this and in another case, a visually impaired person cannot do without a magnifying glass. Small numbers and letters on the keys are almost invisible even to a person with normal vision, since the keys themselves are scanty. Continue reading