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Aspheric IOLs

An aspheric intraocular lens (IOL) is a type of artificial lens that is implanted in the eye during cataract surgery to replace the natural lens that has become cloudy. Unlike traditional IOLs, which have a spherical shape and the same curvature and Diopter power across their entire surface, aspheric IOLs have a more complex shape that varies in curvature and Diopter power across their surface.

This design can provide better vision quality by reducing certain types of visual aberrations. In a natural human eye, the cornea and the natural lens have a gradually changing curvature, which helps to focus light rays onto the retina at the back of the eye. Aspheric IOLs are designed to mimic this natural curvature of the cornea and natural lens which can help to reduce these visual distortions and provide sharper more natural vision. Aspheric IOLs may also benefit patients with low levels of astigmatism.