In this condition , short sight progressively decreases . This reduction starts from the age of 40 approximately and is due to a decrease of the eyes ability to adapt. Most patients need positive lenses for reading. Always before making glasses for reading , is good to check also the distant vision. In case the patient needs lenses for reading and for distant vision , the solutions are two.The first is one pair of glasses for reading and one for distance or the 2 in 1 solutions, the progressive lenses. Progressive lenses are by far the best treatment for your eyes health.