Typically occurring in middle and old age, presbyopia is farsightedness caused by the loss of elasticity in the lens of the eye. The condition, also called age-related farsightedness, is marked by a gradual, age-related loss of the eyes' ability to focus actively on nearby objects. Farsightedness usually becomes noticeable in the early to mid-40s and tends to increase in severity until the mid-60s. This condition is most often corrected by the use of nonprescription or prescription eyeglasses or contact lenses.
Causes & Risk Factors
Presbyopia is caused by a hardening of the lens of the eye, which occurs as a person ages. As the lens in the eye becomes less flexible, it can no longer change shape to focus on close-up images. As a result, these images appear out of focus.
Symptoms
The need to hold reading material at arm’s length to make letters clearer
Blurred vision at normal reading distance
Eyestrain after reading
In rare cases, it may cause headaches