Which optical effect enabled Alhazen (Ibn al-Haytham) to more accurately describe refraction through curved lenses?

💡 Explanation

When describing refraction, Alhazen considered spherical aberration, which occurs because a spherical lens doesn't focus all parallel rays to a single point, degrading image quality. Therefore, accounting for spherical aberration enabled better predictions, rather than chromatic aberration, diffraction, or polarization, which involve different optical phenomena.

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