| 摘要 |
An apparatus for non-penetrating filtration ophthalmic surgery comprising a laser source (52) that generates a laser beam (54), a scanner (56) comprising an input for said laser beam and an output of a spatially scanned laser beam having a spot size and power density at a focal plane, controlling circuitry (74, 108) that drives said scanner to remove tissue in a desired pattern (220, 222) using scanning parameters, including a percolation zone of a size and shape suitable for non-penetration filtration on the eye (40), a microscope (58) for viewing said tissue removal at said focal plane, and a beam combiner (70) which combines a line of sight of said microscope (58) with said spatially scanned beam. Said scanning parameters are selected with beam settings of said laser beam to provide self-limiting ablation by said beam at locations with a sufficient percolation rate. |
