Spherical aberration
By Melissa Licari
Reviewed by
Karen Apuan
Karen is a Doctor of Optometry and a member of the Integrated Philippine Association of Optometrists.
Spherical aberration is an optical imperfection that occurs when light rays passing through a lens do not focus at the same point. This can happen in lenses with a simple spherical shape, where light entering near the edge bends differently than light passing through the centre. The result may be blurred vision, reduced contrast, or glare. Advanced lens designs, such as aspheric lenses, help reduce spherical aberration.
