A method for selecting an individual wearer and providing a prescription for a corrective ophthalmic lens for this selected individual wearer, the method comprising: using a first instrument, identifying in a first analysis a first identification factor of said individual wearer from a plurality of parameters for evaluating an individual wearers' level of perception and control and selecting this individual wearer when the first identification factor is within a predetermined value; for said selected individual wearer having said first identification factor within a predetermined value, using a second instrument, identifying in a second analysis a second identification factor, wherein the second instrument includes equipment for objectively measuring refractive error in an eye, and selecting this individual wearer when the second identification factor is within a predetermined value; for said selected individual wearer having said second identification factor within a predetermined value, using a third instrument, identifying in a third analysis a third identification factor, wherein the third instrument includes equipment for subjectively evaluating refraction in an eye and refraction is evaluated using an incremental change that is lower than 0.20 diopter, or is in a range between about the nearest 0.01 diopter and about the nearest 0.20 diopter; and generating a prescription based on the refraction obtained from at least one of the second instrument and the third instrument, wherein the prescription includes at least one correction that is to the nearest 0.20 diopter, or is in a range between about the nearest 0.01 diopter and about the nearest 0.20 diopter. using a first instrument, identifying in a first analysis a first identification factor of said individual wearer from a plurality of parameters for evaluating an individual wearers' level of perception and control and selecting this individual wearer when the first identification factor is within a predetermined value; for said selected individual wearer having said first identification factor within a predetermined value, using a second instrument, identifying in a second analysis a second identification factor, wherein the second instrument includes equipment for objectively measuring refractive error in an eye, and selecting this individual wearer when the second identification factor is within a predetermined value; for said selected individual wearer having said second identification factor within a predetermined value, using a third instrument, identifying in a third analysis a third identification factor, wherein the third instrument includes equipment for subjectively evaluating refraction in an eye and refraction is evaluated using an incremental change that is lower than 0.20 diopter, or is in a range between about the nearest 0.01 diopter and about the nearest 0.20 diopter; and generating a prescription based on the refraction obtained from at least one of the second instrument and the third instrument, wherein the prescription includes at least one correction that is to the nearest 0.20 diopter, or is in a range between about the nearest 0.01 diopter and about the nearest 0.20 diopter.