A method for determining optical configuration, e.g. intraocular lens (IOL) spherical equivalent and cylinder power, of an implantable rotationally-extended tolerant ophthalmic apparatus for the selection thereof, said ophthalmic apparatus being an intraocular lens (IOL), the method comprising: receiving, by a processor, measurement data associated with an eye of a patient; determining, by the processor, using a conventional power calculator and using the measurement data, a spherical equivalent and cylinder power for an ophthalmic apparatus selected from the group consisting of an implantable rotationally-extended tolerant ophthalmic apparatus, an implantable extended range of vision (ERV) ophthalmic apparatus, and an implantable extended depth of focus (EDOF) ophthalmic apparatus; determining, by the processor, a refractive or residual cylinder (RC) power associated with a random residual astigmatism power for the ophthalmic apparatus, wherein the random residual astigmatism power is associated with a pre-determined rotational misalignment for the apparatus once implanted; in response to a manifest refraction spherical equivalent (MRSE) parameter or manifest residual cylinder (MRC) power being outside an acceptable range of visual acuity, modifying the spherical equivalent by adding a RC value thereto until the manifest refraction spherical equivalent (MRSE) parameter or manifest residual cylinder (MRC) power is within the acceptable range; and causing, by the processor, a visual representation of the spherical equivalent and cylinder power to be presented, wherein the spherical equivalent and cylinder power are used for the selection of the implantable ophthalmic apparatus to be implanted into the eye of the patient. receiving, by a processor, measurement data associated with an eye of a patient; determining, by the processor, using a conventional power calculator and using the measurement data, a spherical equivalent and cylinder power for an ophthalmic apparatus selected from the group consisting of an implantable rotationally-extended tolerant ophthalmic apparatus, an implantable extended range of vision (ERV) ophthalmic apparatus, and an implantable extended depth of focus (EDOF) ophthalmic apparatus; determining, by the processor, a refractive or residual cylinder (RC) power associated with a random residual astigmatism power for the ophthalmic apparatus, wherein the random residual astigmatism power is associated with a pre-determined rotational misalignment for the apparatus once implanted; in response to a manifest refraction spherical equivalent (MRSE) parameter or manifest residual cylinder (MRC) power being outside an acceptable range of visual acuity, modifying the spherical equivalent by adding a RC value thereto until the manifest refraction spherical equivalent (MRSE) parameter or manifest residual cylinder (MRC) power is within the acceptable range; and causing, by the processor, a visual representation of the spherical equivalent and cylinder power to be presented, wherein the spherical equivalent and cylinder power are used for the selection of the implantable ophthalmic apparatus to be implanted into the eye of the patient. <EOS>