Presbyopia is a medical term for the need to wear reading glasses or bifocals when reaching middle age. It’s a common refractive error caused by the natural stiffening of the lens in the eye. This prevents the lens from changing the focus, making it difficult to clearly see distant and nearby objects. As a result, people with presbyopia may have difficulty with tasks such as reading, sewing, or using a computer, and may need to hold objects at arm's length to see them clearly.
Presbyopia typically starts to develop in people around the age of 40 and gradually worsens with time. Unfortunately this is a normal part of aging so it can’t be prevented. But that doesn’t mean it can’t be treated. Typical treatment options for presbyopia include contact lenses, eye glasses, and LASIK surgery.