By Bjarne Lühr Hansen PhD, MD and Philipp Skafte-Holm MD, Mentor Institute
With all people, the ability to focus deteriorates with age and thereby the ability to see things close up clearly. It is called presbyopia or age-related long-sightedness.
Therefore, most people need reading glasses when they reach 45-50 years. Even though you previously have had corrective laser surgery of long-sightedness, short-sightedness or astigmatism, you will still experience the need for reading glasses, as you get older.