A method of forming contact lenses, the method comprising: (a) providing a tooling set for forming mold halves for forming an ophthalmic device from a curable monomer mixture, the tooling set comprising a plurality of posterior step tools and a plurality of incremental tools, each incremental tool having a unique conic constant, and each having a posterior optic defining surface and a plurality of anterior step tools each having an anterior optic defining surface, and the anterior tools configured to provide resultant diopter step increments wherein each one of the plurality of posterior tools has a different central posterior optic defining surface, and wherein incremental posterior step tools can be used with each one of the plurality of anterior step tools to provide a resultant spherical aberration within a predetermined range; (b) selecting one of the plurality of posterior step tools and one of the plurality of anterior tools based on a criteria, wherein the criteria includes a spherical power correction; and (c) forming a posterior mold by the selected one of the plurality of posterior step tools and an anterior mold by the selected one of the plurality of anterior step tools, the posterior mold and the anterior mold operable to form a contact lens having the criteria, wherein each one of the plurality of posterior step tools, when paired with each one of the plurality of anterior step tools, provides a lens with a unique spherical power correction, wherein each said lens with a unique spherical power correction has a spherical aberration value within a predetermined range, and wherein said spherical aberration value is within a range of about 0.1 to about 0.2 μm. (a) providing a tooling set for forming mold halves for forming an ophthalmic device from a curable monomer mixture, the tooling set comprising a plurality of posterior step tools and a plurality of incremental tools, each incremental tool having a unique conic constant, and each having a posterior optic defining surface and a plurality of anterior step tools each having an anterior optic defining surface, and the anterior tools configured to provide resultant diopter step increments wherein each one of the plurality of posterior tools has a different central posterior optic defining surface, and wherein incremental posterior step tools can be used with each one of the plurality of anterior step tools to provide a resultant spherical aberration within a predetermined range; (b) selecting one of the plurality of posterior step tools and one of the plurality of anterior tools based on a criteria, wherein the criteria includes a spherical power correction; and (c) forming a posterior mold by the selected one of the plurality of posterior step tools and an anterior mold by the selected one of the plurality of anterior step tools, the posterior mold and the anterior mold operable to form a contact lens having the criteria, wherein each one of the plurality of posterior step tools, when paired with each one of the plurality of anterior step tools, provides a lens with a unique spherical power correction, wherein each said lens with a unique spherical power correction has a spherical aberration value within a predetermined range, and wherein said spherical aberration value is within a range of about 0.1 to about 0.2 μm. <EOS>