A method, comprising: - making (106, 108, 174), at an ordering location, one or more refractions (220, 230, 280) of a person to determine information about the person's vision, said one or more refractions comprising an objective refraction derived from a wavefront measurement; - - entering said information about the person's vision based on the one or more refractions (106, 108, 220, 230) into a first computer system (136, 136a, 136b, 136c) being located at said ordering location; - sending (178, 190) from said first computer system (136, 136a, 136b, 136c), said information about the person's vision to a second computer system being located at a calculation location, said second computer system being configured to perform calculations based on said information about the person's vision, said second computer system being in a separate location from said first computer system (136, 136a, 136b, 136c); said second computer system being configured to generate prescription information comprising sphere, cylinder and cylinder axis based on said sent wavefront data; - receiving, at said first computer system (136, 136a, 136b, 136c) from said second computer system, said prescription information; and - placing an order for a lens based on said received prescription information by sending said received prescription information from said first computer system (136, 136a, 136b, 136c) to a third computer system being located at a lens manufacturing location, said third computer system being in a separate location from said first computer system (136, 136a, 136b, 136c) and said second computer system, the separate locations being separate buildings. - making (106, 108, 174), at an ordering location, one or more refractions (220, 230, 280) of a person to determine information about the person's vision, said one or more refractions comprising an objective refraction derived from a wavefront measurement; - - entering said information about the person's vision based on the one or more refractions (106, 108, 220, 230) into a first computer system (136, 136a, 136b, 136c) being located at said ordering location; - sending (178, 190) from said first computer system (136, 136a, 136b, 136c), said information about the person's vision to a second computer system being located at a calculation location, said second computer system being configured to perform calculations based on said information about the person's vision, said second computer system being in a separate location from said first computer system (136, 136a, 136b, 136c); said second computer system being configured to generate prescription information comprising sphere, cylinder and cylinder axis based on said sent wavefront data; - receiving, at said first computer system (136, 136a, 136b, 136c) from said second computer system, said prescription information; and - placing an order for a lens based on said received prescription information by sending said received prescription information from said first computer system (136, 136a, 136b, 136c) to a third computer system being located at a lens manufacturing location, said third computer system being in a separate location from said first computer system (136, 136a, 136b, 136c) and said second computer system, the separate locations being separate buildings.