How spherical aberration can be corrected?

Spherical aberration can be corrected using several methods, including the use of aspheric lenses, which have a non-uniform curvature that helps focus light more uniformly. Additionally, adjusting the aperture size of the lens system can minimize the effects of spherical aberration by limiting the light rays that contribute to the aberration. Another approach is to employ a combination of lenses with different shapes and refractive indices to counteract the aberration. Finally, advanced optical design techniques, such as computational optimization, can also be applied to enhance image quality.