Is a common condition that affects middle-aged people and makes close vision blurred and reading difficult.

As the eye's natural lens ages, it loses its flexibility and hence it becomes more difficult for the eye to bring near objects into focus.

Initially, there may be intermittent blurred near vision, in particular when reading fine print or reading in low light conditions.

Persisting with these near tasks may require longer working distances, holding print further away. Reading with uncorrected presbyopia often causes eye strain, may cause headaches and sore eyes.