What differentiates each of the four PolyVue High Definition lenses?
PolyVue High Definition Aspheric Unlike other aspheric lenses, PolyVue High Definition Aspheric incorporates the ideal aspheric curvature for each soft lens power to compensate for aberration caused by lens flexure on the eye. It improves depth of field and visual acuity at all distances and reduces refractive astigmatism. An excellent choice for early presbyopes and low astigmats. PolyVue High Definition Toric Aspheric PolyVue High Definition Aspheric optics minimize cylinder powers by masking up to 0.75 diopter of refractive astigmatism. Practitioners enjoy simplified fitting and reduced inventory. PolyVue HDX Progressive All the benefits of the High Definition Aspheric lens with an enhanced progressive add power in the center of the lens, HDX Progressive is designed for early to mature presbyopes. Versatile lens provides stable vision and comfort all day long – all-round winner! PolyVue HDX Toric Progressive The first cast molded toric progressive in the industry is designed for pre