Legal blindness is referred to as condition when despite treatment such as surgery, a person is unable to see properly. To be more specific, a person who is legally blind can see at 20 feet what a normal person can see at 200 feet. It is not a medical term but is being used by lawmakers in certain countries. People who can see normally with one eye but are blind from the other eye do not come under the category of ‘legally blind’. For example, in the United States, 700,000 people fall in the legally blind category. These people can get various government benefits such as financial help among others.