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A: Influence of the apical radius of the corneal surface modeled as a revolution conic on the BFS radius. There is a linear increase of the BFS radius with the increase of the apical radius of the surface.
B: Influence of the asphericty of the corneal surface modeled as a revolution conic on radius of the BFS. There is a linear increase of BFS radius of the BFS radius with the increase of negative asphericity (increased prolateness) of the surface.
