Glossary
A person with visual impairment is by definition a person who, in the best eye and after correction with glasses or contact lenses, has a visual acuity that is 0.3 or worse. Or the one that has a field of vision of less than 20 degrees.
There is also a road sign that signals that people with impaired vision are common, which is a yellow rectangle with red edges and with five black dots in a row. If you see this road sign, you should adjust your driving according to the fact that any pedestrians may have difficulty seeing you.
