| 摘要 |
<p>The diameter and the volume of the cornea excision and/or ablation are measured by the manual and automatic input data. The volume body of the presumptuous areas of the cornea is calculated by volume-describing functions or interpolation of the measurement data and/or plausibility check of the existing data. A modified excision and/or ablation volume is calculated by volume-describing functions and/or interpolation of the volume calculated with the input data. Cornea specific correction factors are used for calculating the cornea volume excision and/or ablation. The calculated data is used for external processing or calculation of a Laser spot distribution and the calculated excision and/or ablation corresponds to device-specific parameters of eye-surgical lasers and export and/or delivery of the computed laser firing coordinates to the laser. The simulation of laser ablation for the determination of the optimal firing distribution related to the calculated excision and/or ablation of cornea volume is accomplished. The calculation or representation of the determined excision and/or ablation is carried out by Zernike coefficients, matrices, point coordinates, best fit methods, Cartesian or polar coordinates, vectors and/or vector coordinates. The pachymetric measurement of the cornea comprises multiple measuring points on the cornea. The pachymetric measurement and the calculation of the cornea volume excision and/or ablation are used for determination of defective visions of the eye or determination of a transplantation bed for a cornea transplant or treatment of a cornea transplant. The calculated volume is two-dimensional and/or three-dimensionally represented.</p> |
