The 20 year warranty on Lasik doesn’t guarantee a lifetime of normal vision. The surgery can neither correct nor prevent presbyopia, the most common form of age-related far-sightedness. This reduction in vision is caused by a hardening and loss of flexibility in the lens as well as a weakening of the muscles used for focusing.
The 20 year warranty on Lasik doesn’t guarantee a lifetime of normal vision. The surgery can neither correct nor prevent presbyopia, the most common form of age-related far-sightedness. This reduction in vision is caused by a hardening and loss of flexibility in the lens as well as a weakening of the muscles used for focusing.