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 ...

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 ...