title: Excimer laser surgery of the cornea: qualitative and quantitative aspects of photoablation according to the energy density.
abstract: Using an excimer laser working in the far ultraviolet and cutting fresh corneas of human cadaver eyes, we were able to demonstrate that there is an ideal fluence (joule/cm2/pulse) that allows a maximum tissue ablation depth per shot. Above the threshold of 1 J/cm2/pulse the depth of tissue ablated does not increase and both thermal and mechanical damage appears at the cut edges.
mesh_terms: D003315:Cornea / Q000473:pathology / Q000601:surgery*; D004727:Endothelium / Q000473:pathology; D006801:Humans; D053685:Laser Therapy; D008854:Microscopy, Electron; D009216:Myopia / Q000601:surgery