The combination of the conventional electron lens with a "positive" spherical aberration and a light-field electron lens that offset the aberration reduced the electron beams size to the atomic scale.

Eyes in the study with a lot of postoperative positive spherical aberration tended to be hyperopic, Dr. Subbaram said, leading to a hypothesis that defocus is related to spherical aberration.

The lens has positive spherical aberration of approximately +0.10 µm, somewhat dependent on optic power and optic design. This type of spherical aberration is best in patients who have negative ...

On the other hand, all human and model eyes bearing Acrysof registered positive internal spherical aberration in Z(4,0) and Z(6,0). The ThinOptX lens yielded slightly higher contrast sensitivity ...

Rafael Gonzalez from Mexico's Tecnologico de Monterrey has come up with an almost comically dense equation that can be used to almost completely eliminate spherical aberration in optical lenses ...