Apparatus and method for providing a laser shot file

A - Human Necessities – 61 – F

Patent

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A61F 9/01 (2006.01)

Patent

CA 2740541

The invention relates to an apparatus, an algorithm and a method for providing a laser shot file for use in a laser. The laser may be an excimer laser. The shot file may be applied for performing a refractive laser treatment of an eye or for producing a customized contact lens or an intraocular lens. According to the invention information with respect to a desired ablation profile is provided and a first series of laser shot positions is calculated based on the desired ablation profile. A simulated ablation profile is generated using said first series of laser shot positions and using information about pulse characteristics of a single laser shot. The simulated ablation profile is compared with the desired ablation profile and residual structures are determined.

L'invention porte sur un appareil, un algorithme et un procédé de lime à décharge laser pour utilisation dans un laser. Le laser peut être un laser à excimère. La lime à décharge peut être utilisée pour exécuter un traitement par laser réfractif d'un il ou pour réaliser une lentille de contact personnalisée ou une lentille intraoculaire. Selon l'invention, des informations concernant un profil d'ablation désiré sont fournies et une première série de positions de décharge laser est calculée, sur la base du profil d'ablation désiré. On génère un profil d'ablation simulé à l'aide de ladite première série de positions de décharge laser et à l'aide d'informations concernant les caractéristiques d'impulsion d'une décharge laser unique. On compare le profil d'ablation simulé au profil d'ablation désiré et on détermine des structures résiduelles.

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