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.

This type of lens requires excellent centration with the patient's visual axis in order to properly offset the positive spherical aberration of the cornea. If I could be sure that the original IOL ...

The formulas demonstrated that the light-field electron lens generates a "negative" spherical aberration which opposes the aberration of electrostatic and magnetic electron lenses. The combination of ...

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 ...

The young phakic eye has a minimal amount of total spherical aberration as the inherent positive spherical aberration of the cornea is compensated for by negative lenticular spherical aberration.

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 ...