Patent ID: 6263879
Filing Date: 2001-07-24
Classification: A61F

Abstract:
A laser beam ophthalmological surgery method for treating presbyopic in a patient's eye by ablating the sclera comprising the steps of:selecting a pulsed ablation laser having a pulsed output beam of predetermined wavelength;selecting a beam spot controller mechanism for reducing and focusing said selected ablative laser's output beam onto a predetermined spot size on the surface of the cornea;selecting a scanning mechanism for scanning said ablative laser output beam;coupling said ablative laser beam to a scanning device for scanning said ablative laser over a predetermined area of the corneal sclera; andcontrolling said scanning mechanism to deliver said ablative laser beam in a predetermined pattern in said predetermined area onto the surface of the cornea to photoablate the sclera tissue outside the limbus, whereby a presbyopic patient's vision is corrected by expansion of the sclera.