Method and system for treating presbyopia

摘要

A system for correcting presbyopia provides a laser adapted to sculpt the cornea in two concentric zones. The first larger zone is treated with a positive diopter correction to allow eye to focus on near objects. A second smaller zone is then treated with a negative diopter correction to allow the cornea to focus on far objects. In one embodiment, the system directs the laser in a series of collapsing crescents to sculpt the zones.