Presbyopia is a condition in which your eyes gradually lose the ability to see things up close.
It is not a disorder or disease but rather a natural ageing process of the eye. Presbyopia literally means “old eye” in Greek.
You may start to notice presbyopia around the age of 40, when you begin to hold reading materials farther away from your face in order to see them more clearly. This familiar event is often the first sign of presbyopia, which, if left uncorrected, can cause eye fatigue and headaches.