Presbyopia surgery is meant to achieve a vision rehabilitation of near objects without having to constantly rely on glasses. There are several techniques and surgical strategies to solve this problem. Correction can be performed changing the corneal curvature or replacing the natural lens.
A more recent method, called Intracor, uses the frmtosecond laser that works in the depths of the corneal structure.
Corneal multifocality is induced so that the eye receive focused images at all distances; the brain can then select based upon their distance