Method and systems for laser treatment of presbyopia using offset imaging

An ophthalmic surgery system for performing selective ablation of an exposed corneal surface of an eye to create a desired aspheric shape for correcting presbyopia on the anterior optical surface of a healed cornea, system comprising:

• (i) means for directing a laser beam along a path;
• (ii) means for profiling said beam to produce a profiled beam with a center;
• (iii) means for displacing the center of the profiled beam over an area of the corneal surface;
• and
• (iv) a computer for controlling the position of the center over the area and creating a plurality of successive laser beam pulses wherein the positions of the plurality are determined by a laser treatment table, the laser treatment table for ablating the exposed surface to form an ablated optical zone that is a different shape than the shape of the anterior optical surface.

An ophthalmic surgery system for performing selective ablation of an exposed corneal surface of an eye to create a desired aspheric shape for correcting presbyopia on the anterior optical surface of a healed cornea, the anterior optical surface comprising a central optical surface for near-vision, the system comprising:

• (i) means for directing a laser beam along a path;
• (ii) means for profiling said beam to produce a profiled beam with a center;
• (iii) means for displacing the center of the profiled beam over an area of the corneal surface;
• and
• (iv) a computer for controlling the position of the center over the area and creating a plurality of successive laser beam pulses wherein the positions of the plurality are determined by a laser treatment table, the laser treatment table for ablating the exposed surface to form an ablated optical zone comprising a zone corrected for near-vision, the optical zone being user selectable and a different shape than the shape of the anterior optical surface, the laser treatment table being scaled to a dimension of a pupil and over correcting the central zone relative to the central surface, the laser treatment table further restricting a dimension across the central zone relative to the central surface.

An ophthalmic surgery system for performing selective ablation of an exposed corneal surface of an eye to create a desired aspheric shape for correcting presbyopia on the anterior optical surface of a heated cornea, the system comprising:

• (i) means for directing a laser beam along a path;
• (ii) means for profiling said beam to produce a profiled beam with a center;
• (iii) means for displacing the center of the profiled beam over an area of the corneal surface;
• and
• (iv) a computer for controlling the position of the center over the area and creating a plurality of successive laser beam pulses wherein the positions of the plurality are determined by a laser treatment table, the laser treatment table being scaled to a dimension of pupil.

An ophthalmic surgery system for performing selective ablation of an exposed corneal surface of an eye to create a desired aspheric shape for correcting presbyopia on the anterior optical surface of a healed cornea, the system comprising:

• (i) means for directing a laser beam along a path;
• (ii) means for profiling said beam to produce a profiled beam with a center;
• (iii) means for displacing the center of the profiled beam over an area of the corneal surface;
• and
• (iv) a computer for controlling the position of the center over the area and creating a plurality of successive laser beam pulses wherein the positions of the plurality are determined by a laser treatment table, the laser treatment table providing for the simultaneous correction of presbyopia and a refractive error selected from the group consisting of myopia, hyperopia, astigmatism and irregular refractive aberrations.