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