Lenses used in electron microscopy have aberrations that limit their resolution. Successful correction of spherical aberration is now possible, opening the door to three-dimensional, sub-ångström ...

BERKELEY, CA -- TEAM 0.5, the world's most powerful transmission electron microscope -- capable of producing images with half-angstrom resolution (half a ten-billionth of a meter), less than the ...

Thirty patients were randomised to receive one of six lens implants including three aspheric lenses and their spherical counterparts. Pre and postoperative testing was carried out including visual ...

FLORENCE – A new laser ablation profile based on the modification of spherical aberration seems to effectively address presbyopia in a significant number of cases with no loss in quantity and quality ...

Applying aspheric treatments to cataract and refractive surgery procedures can significantly reduce spherical aberration and the consequent effects of glare and haloes, improving postoperative visual ...

Light travels at different speeds based on the medium it passes through. For example, in a vacuum, it travels at 3.0 × 10^8 m/s in a straight line. But when directed towards glass, air, diamond, water ...