Conventional spherical IOLS have positive spherical aberrations resulting in decreased contrast sensitivity.

First generation aspherical IOLs have negative spherical aberrations. These IOLs are not universally acceptable because of higher order aberrations (HOAs) in case of decentration or tilting of lens.

Eyecryl Plus Aspheric Series IOLs are aberration free IOLs with aspheric anterior and posterior surfaces. The aberration free design provides good performance and vision even in case of zonular weakness, decentrated pupils and tilting of lens. (Eyecryl Plus Aspheric Series IOLs have been tested for +0.5 mm of decentration and 5 Degree of tilting). The visual function in mesopic/low light conditions improves drastically.