ARTISAN Phakic Toric IOLs are customized devices designed for the correction of regular astigmatism in combination with myopia or hyperopia. The asymmetric optic has two components: sphere and cylinder. All (spherical) ARTISAN lenses for myopia and hyperopia can be supplied with cylinders between 1 and 7.5 diopters. It is also possible to supply optics with only a cylindric correction.