发明名称 |
Device and method for correcting astigmatism by laser ablation |
摘要 |
A method for correction of a simple astigmatism of a corneal surface of an eye is provided. The method provides a laser operable to produce a pulsed output laser beam. A scanning mechanism is positioned to operatively receive the pulsed output laser beam of the laser and operable to control the scanning of the pulsed output laser beam over a target surface to be ablated. A computer system is operatively connected to the scanning mechanism for control thereof with the computer system operable to determine a desired configuration of an ablation to be performed on the target surface and to define a boundary associated with the ablation. The computer system is further operable to determine the number of layers required to be ablated to achieve the desired configuration of the ablation and a boundary and a scanning pattern associated with each layer with the computer system and the scanning mechanism operable with one another to ablate the target surface in a series of layers the number of which corresponds to the number determined such that the resultant ablation on the target surface corrects the simple astigmatism.
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申请公布号 |
US6409718(B1) |
申请公布日期 |
2002.06.25 |
申请号 |
US19980017680 |
申请日期 |
1998.02.03 |
申请人 |
LASERSIGHT TECHNOLOGIES, INC. |
发明人 |
TANG FUQIAN |
分类号 |
A61F9/01;(IPC1-7):A61B18/18 |
主分类号 |
A61F9/01 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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