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An optical correction system for correcting visual defects of an eye includes a wavefront analyzer responsive to a wavefront emanating from an eye for determining an optical path difference between a reference wave and the wavefront. A converter provides an optical correction based on the path diffe

An optical correction system for correcting visual defects of an eye includes a wavefront analyzer responsive to a wavefront emanating from an eye for determining an optical path difference between a reference wave and the wavefront. A converter provides an optical correction based on the path difference and on a radially dependent ablation efficiency. The efficiency correction uses a compensating polynomial of the form A+Bρ+Cρ2+Dρ3+ . . . +Xρn,where ρ is a normalized radius measured from a central portion of the cornea, reaching a value of 1 at an outer edge of the optical correction zone. A laser beam is directed to the cornea that has power sufficient for ablating corneal material. The optical correction is achieved by the removal of a selected amount of the corneal material to create a desired corneal shape change based on the optical correction.

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An optical correction system for correcting visual defects of an eye includes a wavefront analyzer responsive to a wavefront emanating from an eye for determining an optical path difference between a reference wave and the wavefront. A converter provides an optical correction based on the path diffe

An optical correction system for correcting visual defects of an eye includes a wavefront analyzer responsive to a wavefront emanating from an eye for determining an optical path difference between a reference wave and the wavefront. A converter provides an optical correction based on the path difference and on a radially dependent ablation efficiency. The efficiency correction uses a compensating polynomial of the form A+Bρ+Cρ2+Dρ3+ . . . +Xρn,where ρ is a normalized radius measured from a central portion of the cornea, reaching a value of 1 at an outer edge of the optical correction zone. A laser beam is directed to the cornea that has power sufficient for ablating corneal material. The optical correction is achieved by the removal of a selected amount of the corneal material to create a desired corneal shape change based on the optical correction. onary and Peripheral Angioplasty, Chapter 24, pp. 449-476. "Perfusion Angioplasty" Kereiakes, et al., II-Coronary and Peripheral Angioplasty, Chapter 25, pp. 477-494. "Angiplasty and Interventional Vascular Procedures in the Peripheral, Renal, Visceral and Extracranial Circulation" Wholey, et al., II-Coronary and Peripheral Angioplasty, Chapter 33, pp. 600-628. "DCA Device" (section) and summary III-Coronary Atherectomy, Chapter 35, pp. 642, 657, and 658. "Percutaneous Coronary Rotational Angioplasty with the Rotablator" Bertrand, et al., III-Coronary Atherectomy, Chapter 36, pp. 659, 666,and 667. "Extraction Atherectomy" III-Coronary Atherectomy, Chapter 37, pp. 669, 675-677. "Cirrus: Occulsion Balloon Micron Catheter" Micro Interventional Systems, Inc., Advertisement. "Grapevine: Over-the-Wire Coaxial Lumen Balloon-Tipped Micro Catheter" Micro Interventional Systems, Inc., Advertisement. "Zeppelin-6.4F: Balloon-Tipped Guiding Catheter"Micro Interventional Systems, Inc., Advertisement. "Zeppelin-842: Balloon Guiding Catheter Provides Flow Control During Ethanol Embolotherapy" Bell, et al. for Micro Interventional Systems, Inc., Advertisement. "Zeppelin-1066: Balloon Guiding Catheter Controls Flow During Detachable Balloon Delivery"Micro Interventional Systems, Inc., Advertisement. "Zeppelin-1066: Flow Control and Protection During Carotid Angioplasty" Micro Interventional Systems, Inc., Advertisement. "Zeppelin-1066: Flow Control Improves Safety During CCF Embolization"Micro Interventional Systems, Inc., Advertisement. "Zeppelin-1066: Provides Flow Control and Protection During Detachable Balloon Occulusion" Micro Interventional Systems, Inc., Advertisement. "Zeppelin: Balloon Guiding Catheter" Micro Interventional Systems, Inc., Advertisement. "New Triple Coaxial Catheter System for Carotid Angioplasty with Cerebral Protection"Theron, et al., AJNR, 11:869-874, Sep./Oct. 1990. "Angiojet F105: Rapid Thromberctomy Catheter" Pos